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Groups > linux.kernel > #1671072 > unrolled thread

[PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen

Started byDaniel Kiper <daniel.kiper@oracle.com>
First post2017-06-20 22:20 +0200
Last post2017-06-21 11:40 +0200
Articles 6 — 4 participants

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  [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen Daniel Kiper <daniel.kiper@oracle.com> - 2017-06-20 22:20 +0200
    Re: [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-06-21 10:00 +0200
    Re: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct members  used by Xen Andrew Cooper <andrew.cooper3@citrix.com> - 2017-06-21 10:20 +0200
      Re: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct  members used by Xen Daniel Kiper <daniel.kiper@oracle.com> - 2017-06-21 11:40 +0200
    Re: [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen Ingo Molnar <mingo@kernel.org> - 2017-06-21 11:30 +0200
      Re: [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen Daniel Kiper <daniel.kiper@oracle.com> - 2017-06-21 11:40 +0200

#1671072 — [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen

FromDaniel Kiper <daniel.kiper@oracle.com>
Date2017-06-20 22:20 +0200
Subject[PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen
Message-ID<tUxN1-4P5-29@gated-at.bofh.it>
Current approach, wholesale efi struct initialization from efi_xen, is not
good. Usually if new member is defined then it is properly initialized in
drivers/firmware/efi/efi.c but not in arch/x86/xen/efi.c. As I saw it happened
a few times until now. So, let's initialize only efi struct members used by
Xen to avoid such issues in the future.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
---
 arch/x86/xen/efi.c |   45 ++++++++++++---------------------------------
 1 file changed, 12 insertions(+), 33 deletions(-)

diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
index 30bb2e8..01b9faf 100644
--- a/arch/x86/xen/efi.c
+++ b/arch/x86/xen/efi.c
@@ -54,38 +54,6 @@
 	.tables		= EFI_INVALID_TABLE_ADDR  /* Initialized later. */
 };
 
-static const struct efi efi_xen __initconst = {
-	.systab                   = NULL, /* Initialized later. */
-	.runtime_version	  = 0,    /* Initialized later. */
-	.mps                      = EFI_INVALID_TABLE_ADDR,
-	.acpi                     = EFI_INVALID_TABLE_ADDR,
-	.acpi20                   = EFI_INVALID_TABLE_ADDR,
-	.smbios                   = EFI_INVALID_TABLE_ADDR,
-	.smbios3                  = EFI_INVALID_TABLE_ADDR,
-	.sal_systab               = EFI_INVALID_TABLE_ADDR,
-	.boot_info                = EFI_INVALID_TABLE_ADDR,
-	.hcdp                     = EFI_INVALID_TABLE_ADDR,
-	.uga                      = EFI_INVALID_TABLE_ADDR,
-	.uv_systab                = EFI_INVALID_TABLE_ADDR,
-	.fw_vendor                = EFI_INVALID_TABLE_ADDR,
-	.runtime                  = EFI_INVALID_TABLE_ADDR,
-	.config_table             = EFI_INVALID_TABLE_ADDR,
-	.get_time                 = xen_efi_get_time,
-	.set_time                 = xen_efi_set_time,
-	.get_wakeup_time          = xen_efi_get_wakeup_time,
-	.set_wakeup_time          = xen_efi_set_wakeup_time,
-	.get_variable             = xen_efi_get_variable,
-	.get_next_variable        = xen_efi_get_next_variable,
-	.set_variable             = xen_efi_set_variable,
-	.query_variable_info      = xen_efi_query_variable_info,
-	.update_capsule           = xen_efi_update_capsule,
-	.query_capsule_caps       = xen_efi_query_capsule_caps,
-	.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
-	.reset_system             = xen_efi_reset_system,
-	.set_virtual_address_map  = NULL, /* Not used under Xen. */
-	.flags			  = 0     /* Initialized later. */
-};
-
 static efi_system_table_t __init *xen_efi_probe(void)
 {
 	struct xen_platform_op op = {
@@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
 
 	/* Here we know that Xen runs on EFI platform. */
 
-	efi = efi_xen;
+	efi.get_time = xen_efi_get_time;
+	efi.set_time = xen_efi_set_time;
+	efi.get_wakeup_time = xen_efi_get_wakeup_time;
+	efi.set_wakeup_time = xen_efi_set_wakeup_time;
+	efi.get_variable = xen_efi_get_variable;
+	efi.get_next_variable = xen_efi_get_next_variable;
+	efi.set_variable = xen_efi_set_variable;
+	efi.query_variable_info = xen_efi_query_variable_info;
+	efi.update_capsule = xen_efi_update_capsule;
+	efi.query_capsule_caps = xen_efi_query_capsule_caps;
+	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
+	efi.reset_system = xen_efi_reset_system;
 
 	efi_systab_xen.tables = info->cfg.addr;
 	efi_systab_xen.nr_tables = info->cfg.nent;
-- 
1.7.10.4

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#1671455

FromArd Biesheuvel <ard.biesheuvel@linaro.org>
Date2017-06-21 10:00 +0200
Message-ID<tUIIq-3hT-19@gated-at.bofh.it>
In reply to#1671072
On 20 June 2017 at 22:14, Daniel Kiper <daniel.kiper@oracle.com> wrote:
> Current approach, wholesale efi struct initialization from efi_xen, is not
> good. Usually if new member is defined then it is properly initialized in
> drivers/firmware/efi/efi.c but not in arch/x86/xen/efi.c. As I saw it happened
> a few times until now. So, let's initialize only efi struct members used by
> Xen to avoid such issues in the future.
>
> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>

Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

> ---
>  arch/x86/xen/efi.c |   45 ++++++++++++---------------------------------
>  1 file changed, 12 insertions(+), 33 deletions(-)
>
> diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
> index 30bb2e8..01b9faf 100644
> --- a/arch/x86/xen/efi.c
> +++ b/arch/x86/xen/efi.c
> @@ -54,38 +54,6 @@
>         .tables         = EFI_INVALID_TABLE_ADDR  /* Initialized later. */
>  };
>
> -static const struct efi efi_xen __initconst = {
> -       .systab                   = NULL, /* Initialized later. */
> -       .runtime_version          = 0,    /* Initialized later. */
> -       .mps                      = EFI_INVALID_TABLE_ADDR,
> -       .acpi                     = EFI_INVALID_TABLE_ADDR,
> -       .acpi20                   = EFI_INVALID_TABLE_ADDR,
> -       .smbios                   = EFI_INVALID_TABLE_ADDR,
> -       .smbios3                  = EFI_INVALID_TABLE_ADDR,
> -       .sal_systab               = EFI_INVALID_TABLE_ADDR,
> -       .boot_info                = EFI_INVALID_TABLE_ADDR,
> -       .hcdp                     = EFI_INVALID_TABLE_ADDR,
> -       .uga                      = EFI_INVALID_TABLE_ADDR,
> -       .uv_systab                = EFI_INVALID_TABLE_ADDR,
> -       .fw_vendor                = EFI_INVALID_TABLE_ADDR,
> -       .runtime                  = EFI_INVALID_TABLE_ADDR,
> -       .config_table             = EFI_INVALID_TABLE_ADDR,
> -       .get_time                 = xen_efi_get_time,
> -       .set_time                 = xen_efi_set_time,
> -       .get_wakeup_time          = xen_efi_get_wakeup_time,
> -       .set_wakeup_time          = xen_efi_set_wakeup_time,
> -       .get_variable             = xen_efi_get_variable,
> -       .get_next_variable        = xen_efi_get_next_variable,
> -       .set_variable             = xen_efi_set_variable,
> -       .query_variable_info      = xen_efi_query_variable_info,
> -       .update_capsule           = xen_efi_update_capsule,
> -       .query_capsule_caps       = xen_efi_query_capsule_caps,
> -       .get_next_high_mono_count = xen_efi_get_next_high_mono_count,
> -       .reset_system             = xen_efi_reset_system,
> -       .set_virtual_address_map  = NULL, /* Not used under Xen. */
> -       .flags                    = 0     /* Initialized later. */
> -};
> -
>  static efi_system_table_t __init *xen_efi_probe(void)
>  {
>         struct xen_platform_op op = {
> @@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
>
>         /* Here we know that Xen runs on EFI platform. */
>
> -       efi = efi_xen;
> +       efi.get_time = xen_efi_get_time;
> +       efi.set_time = xen_efi_set_time;
> +       efi.get_wakeup_time = xen_efi_get_wakeup_time;
> +       efi.set_wakeup_time = xen_efi_set_wakeup_time;
> +       efi.get_variable = xen_efi_get_variable;
> +       efi.get_next_variable = xen_efi_get_next_variable;
> +       efi.set_variable = xen_efi_set_variable;
> +       efi.query_variable_info = xen_efi_query_variable_info;
> +       efi.update_capsule = xen_efi_update_capsule;
> +       efi.query_capsule_caps = xen_efi_query_capsule_caps;
> +       efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
> +       efi.reset_system = xen_efi_reset_system;
>
>         efi_systab_xen.tables = info->cfg.addr;
>         efi_systab_xen.nr_tables = info->cfg.nent;
> --
> 1.7.10.4
>

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#1671481 — Re: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen

FromAndrew Cooper <andrew.cooper3@citrix.com>
Date2017-06-21 10:20 +0200
SubjectRe: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen
Message-ID<tUJ1M-3E2-19@gated-at.bofh.it>
In reply to#1671072
On 20/06/2017 21:14, Daniel Kiper wrote:
> Current approach, wholesale efi struct initialization from efi_xen, is not
> good. Usually if new member is defined then it is properly initialized in
> drivers/firmware/efi/efi.c but not in arch/x86/xen/efi.c. As I saw it happened
> a few times until now. So, let's initialize only efi struct members used by
> Xen to avoid such issues in the future.
>
> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
> ---
>  arch/x86/xen/efi.c |   45 ++++++++++++---------------------------------
>  1 file changed, 12 insertions(+), 33 deletions(-)
>
> diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
> index 30bb2e8..01b9faf 100644
> --- a/arch/x86/xen/efi.c
> +++ b/arch/x86/xen/efi.c
> @@ -54,38 +54,6 @@
>  	.tables		= EFI_INVALID_TABLE_ADDR  /* Initialized later. */
>  };
>  
> -static const struct efi efi_xen __initconst = {
> -	.systab                   = NULL, /* Initialized later. */
> -	.runtime_version	  = 0,    /* Initialized later. */
> -	.mps                      = EFI_INVALID_TABLE_ADDR,
> -	.acpi                     = EFI_INVALID_TABLE_ADDR,
> -	.acpi20                   = EFI_INVALID_TABLE_ADDR,
> -	.smbios                   = EFI_INVALID_TABLE_ADDR,
> -	.smbios3                  = EFI_INVALID_TABLE_ADDR,
> -	.sal_systab               = EFI_INVALID_TABLE_ADDR,
> -	.boot_info                = EFI_INVALID_TABLE_ADDR,
> -	.hcdp                     = EFI_INVALID_TABLE_ADDR,
> -	.uga                      = EFI_INVALID_TABLE_ADDR,
> -	.uv_systab                = EFI_INVALID_TABLE_ADDR,
> -	.fw_vendor                = EFI_INVALID_TABLE_ADDR,
> -	.runtime                  = EFI_INVALID_TABLE_ADDR,
> -	.config_table             = EFI_INVALID_TABLE_ADDR,
> -	.get_time                 = xen_efi_get_time,
> -	.set_time                 = xen_efi_set_time,
> -	.get_wakeup_time          = xen_efi_get_wakeup_time,
> -	.set_wakeup_time          = xen_efi_set_wakeup_time,
> -	.get_variable             = xen_efi_get_variable,
> -	.get_next_variable        = xen_efi_get_next_variable,
> -	.set_variable             = xen_efi_set_variable,
> -	.query_variable_info      = xen_efi_query_variable_info,
> -	.update_capsule           = xen_efi_update_capsule,
> -	.query_capsule_caps       = xen_efi_query_capsule_caps,
> -	.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
> -	.reset_system             = xen_efi_reset_system,
> -	.set_virtual_address_map  = NULL, /* Not used under Xen. */
> -	.flags			  = 0     /* Initialized later. */
> -};
> -
>  static efi_system_table_t __init *xen_efi_probe(void)
>  {
>  	struct xen_platform_op op = {
> @@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
>  
>  	/* Here we know that Xen runs on EFI platform. */
>  
> -	efi = efi_xen;
> +	efi.get_time = xen_efi_get_time;
> +	efi.set_time = xen_efi_set_time;
> +	efi.get_wakeup_time = xen_efi_get_wakeup_time;
> +	efi.set_wakeup_time = xen_efi_set_wakeup_time;
> +	efi.get_variable = xen_efi_get_variable;
> +	efi.get_next_variable = xen_efi_get_next_variable;
> +	efi.set_variable = xen_efi_set_variable;
> +	efi.query_variable_info = xen_efi_query_variable_info;
> +	efi.update_capsule = xen_efi_update_capsule;
> +	efi.query_capsule_caps = xen_efi_query_capsule_caps;
> +	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
> +	efi.reset_system = xen_efi_reset_system;

This presumably means that the system default values are already present
in efi at the point that we overwrite some Xen specifics?

If so, surely you need to retain the clobbering of set_virtual_address_map ?

~Andrew

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#1671552 — Re: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen

FromDaniel Kiper <daniel.kiper@oracle.com>
Date2017-06-21 11:40 +0200
SubjectRe: [Xen-devel] [PATCH 2/2] x86/xen/efi: Init only efi struct members used by Xen
Message-ID<tUKhc-4ly-11@gated-at.bofh.it>
In reply to#1671481
On Wed, Jun 21, 2017 at 09:10:51AM +0100, Andrew Cooper wrote:
> On 20/06/2017 21:14, Daniel Kiper wrote:
> > Current approach, wholesale efi struct initialization from efi_xen, is not
> > good. Usually if new member is defined then it is properly initialized in
> > drivers/firmware/efi/efi.c but not in arch/x86/xen/efi.c. As I saw it happened
> > a few times until now. So, let's initialize only efi struct members used by
> > Xen to avoid such issues in the future.
> >
> > Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
> > ---
> >  arch/x86/xen/efi.c |   45 ++++++++++++---------------------------------
> >  1 file changed, 12 insertions(+), 33 deletions(-)
> >
> > diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
> > index 30bb2e8..01b9faf 100644
> > --- a/arch/x86/xen/efi.c
> > +++ b/arch/x86/xen/efi.c
> > @@ -54,38 +54,6 @@
> >  	.tables		= EFI_INVALID_TABLE_ADDR  /* Initialized later. */
> >  };
> >
> > -static const struct efi efi_xen __initconst = {
> > -	.systab                   = NULL, /* Initialized later. */
> > -	.runtime_version	  = 0,    /* Initialized later. */
> > -	.mps                      = EFI_INVALID_TABLE_ADDR,
> > -	.acpi                     = EFI_INVALID_TABLE_ADDR,
> > -	.acpi20                   = EFI_INVALID_TABLE_ADDR,
> > -	.smbios                   = EFI_INVALID_TABLE_ADDR,
> > -	.smbios3                  = EFI_INVALID_TABLE_ADDR,
> > -	.sal_systab               = EFI_INVALID_TABLE_ADDR,
> > -	.boot_info                = EFI_INVALID_TABLE_ADDR,
> > -	.hcdp                     = EFI_INVALID_TABLE_ADDR,
> > -	.uga                      = EFI_INVALID_TABLE_ADDR,
> > -	.uv_systab                = EFI_INVALID_TABLE_ADDR,
> > -	.fw_vendor                = EFI_INVALID_TABLE_ADDR,
> > -	.runtime                  = EFI_INVALID_TABLE_ADDR,
> > -	.config_table             = EFI_INVALID_TABLE_ADDR,
> > -	.get_time                 = xen_efi_get_time,
> > -	.set_time                 = xen_efi_set_time,
> > -	.get_wakeup_time          = xen_efi_get_wakeup_time,
> > -	.set_wakeup_time          = xen_efi_set_wakeup_time,
> > -	.get_variable             = xen_efi_get_variable,
> > -	.get_next_variable        = xen_efi_get_next_variable,
> > -	.set_variable             = xen_efi_set_variable,
> > -	.query_variable_info      = xen_efi_query_variable_info,
> > -	.update_capsule           = xen_efi_update_capsule,
> > -	.query_capsule_caps       = xen_efi_query_capsule_caps,
> > -	.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
> > -	.reset_system             = xen_efi_reset_system,
> > -	.set_virtual_address_map  = NULL, /* Not used under Xen. */
> > -	.flags			  = 0     /* Initialized later. */
> > -};
> > -
> >  static efi_system_table_t __init *xen_efi_probe(void)
> >  {
> >  	struct xen_platform_op op = {
> > @@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
> >
> >  	/* Here we know that Xen runs on EFI platform. */
> >
> > -	efi = efi_xen;
> > +	efi.get_time = xen_efi_get_time;
> > +	efi.set_time = xen_efi_set_time;
> > +	efi.get_wakeup_time = xen_efi_get_wakeup_time;
> > +	efi.set_wakeup_time = xen_efi_set_wakeup_time;
> > +	efi.get_variable = xen_efi_get_variable;
> > +	efi.get_next_variable = xen_efi_get_next_variable;
> > +	efi.set_variable = xen_efi_set_variable;
> > +	efi.query_variable_info = xen_efi_query_variable_info;
> > +	efi.update_capsule = xen_efi_update_capsule;
> > +	efi.query_capsule_caps = xen_efi_query_capsule_caps;
> > +	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
> > +	efi.reset_system = xen_efi_reset_system;
>
> This presumably means that the system default values are already present
> in efi at the point that we overwrite some Xen specifics?

More or less.

> If so, surely you need to retain the clobbering of set_virtual_address_map ?

Nope, by default efi.set_virtual_address_map is NULL (please take a look
at efi struct initialization in drivers/firmware/efi/efi.c). And it is
not touched if efi_enabled(EFI_PARAVIRT).

Daniel

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#1671531

FromIngo Molnar <mingo@kernel.org>
Date2017-06-21 11:30 +0200
Message-ID<tUK7v-4ih-11@gated-at.bofh.it>
In reply to#1671072
* Daniel Kiper <daniel.kiper@oracle.com> wrote:

> -static const struct efi efi_xen __initconst = {
> -	.systab                   = NULL, /* Initialized later. */
> -	.runtime_version	  = 0,    /* Initialized later. */
> -	.mps                      = EFI_INVALID_TABLE_ADDR,
> -	.acpi                     = EFI_INVALID_TABLE_ADDR,
> -	.acpi20                   = EFI_INVALID_TABLE_ADDR,
> -	.smbios                   = EFI_INVALID_TABLE_ADDR,
> -	.smbios3                  = EFI_INVALID_TABLE_ADDR,
> -	.sal_systab               = EFI_INVALID_TABLE_ADDR,
> -	.boot_info                = EFI_INVALID_TABLE_ADDR,
> -	.hcdp                     = EFI_INVALID_TABLE_ADDR,
> -	.uga                      = EFI_INVALID_TABLE_ADDR,
> -	.uv_systab                = EFI_INVALID_TABLE_ADDR,
> -	.fw_vendor                = EFI_INVALID_TABLE_ADDR,
> -	.runtime                  = EFI_INVALID_TABLE_ADDR,
> -	.config_table             = EFI_INVALID_TABLE_ADDR,
> -	.get_time                 = xen_efi_get_time,
> -	.set_time                 = xen_efi_set_time,
> -	.get_wakeup_time          = xen_efi_get_wakeup_time,
> -	.set_wakeup_time          = xen_efi_set_wakeup_time,
> -	.get_variable             = xen_efi_get_variable,
> -	.get_next_variable        = xen_efi_get_next_variable,
> -	.set_variable             = xen_efi_set_variable,
> -	.query_variable_info      = xen_efi_query_variable_info,
> -	.update_capsule           = xen_efi_update_capsule,
> -	.query_capsule_caps       = xen_efi_query_capsule_caps,
> -	.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
> -	.reset_system             = xen_efi_reset_system,
> -	.set_virtual_address_map  = NULL, /* Not used under Xen. */
> -	.flags			  = 0     /* Initialized later. */
> -};
> -
>  static efi_system_table_t __init *xen_efi_probe(void)
>  {
>  	struct xen_platform_op op = {
> @@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
>  
>  	/* Here we know that Xen runs on EFI platform. */
>  
> -	efi = efi_xen;
> +	efi.get_time = xen_efi_get_time;
> +	efi.set_time = xen_efi_set_time;
> +	efi.get_wakeup_time = xen_efi_get_wakeup_time;
> +	efi.set_wakeup_time = xen_efi_set_wakeup_time;
> +	efi.get_variable = xen_efi_get_variable;
> +	efi.get_next_variable = xen_efi_get_next_variable;
> +	efi.set_variable = xen_efi_set_variable;
> +	efi.query_variable_info = xen_efi_query_variable_info;
> +	efi.update_capsule = xen_efi_update_capsule;
> +	efi.query_capsule_caps = xen_efi_query_capsule_caps;
> +	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
> +	efi.reset_system = xen_efi_reset_system;

This is a step back stylistically, as you lost the nice vertical tabulation of the 
original initializer ...

Thanks,

	Ingo

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#1671558

FromDaniel Kiper <daniel.kiper@oracle.com>
Date2017-06-21 11:40 +0200
Message-ID<tUKhc-4ly-21@gated-at.bofh.it>
In reply to#1671531
On Wed, Jun 21, 2017 at 11:24:06AM +0200, Ingo Molnar wrote:
>
> * Daniel Kiper <daniel.kiper@oracle.com> wrote:
>
> > -static const struct efi efi_xen __initconst = {
> > -	.systab                   = NULL, /* Initialized later. */
> > -	.runtime_version	  = 0,    /* Initialized later. */
> > -	.mps                      = EFI_INVALID_TABLE_ADDR,
> > -	.acpi                     = EFI_INVALID_TABLE_ADDR,
> > -	.acpi20                   = EFI_INVALID_TABLE_ADDR,
> > -	.smbios                   = EFI_INVALID_TABLE_ADDR,
> > -	.smbios3                  = EFI_INVALID_TABLE_ADDR,
> > -	.sal_systab               = EFI_INVALID_TABLE_ADDR,
> > -	.boot_info                = EFI_INVALID_TABLE_ADDR,
> > -	.hcdp                     = EFI_INVALID_TABLE_ADDR,
> > -	.uga                      = EFI_INVALID_TABLE_ADDR,
> > -	.uv_systab                = EFI_INVALID_TABLE_ADDR,
> > -	.fw_vendor                = EFI_INVALID_TABLE_ADDR,
> > -	.runtime                  = EFI_INVALID_TABLE_ADDR,
> > -	.config_table             = EFI_INVALID_TABLE_ADDR,
> > -	.get_time                 = xen_efi_get_time,
> > -	.set_time                 = xen_efi_set_time,
> > -	.get_wakeup_time          = xen_efi_get_wakeup_time,
> > -	.set_wakeup_time          = xen_efi_set_wakeup_time,
> > -	.get_variable             = xen_efi_get_variable,
> > -	.get_next_variable        = xen_efi_get_next_variable,
> > -	.set_variable             = xen_efi_set_variable,
> > -	.query_variable_info      = xen_efi_query_variable_info,
> > -	.update_capsule           = xen_efi_update_capsule,
> > -	.query_capsule_caps       = xen_efi_query_capsule_caps,
> > -	.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
> > -	.reset_system             = xen_efi_reset_system,
> > -	.set_virtual_address_map  = NULL, /* Not used under Xen. */
> > -	.flags			  = 0     /* Initialized later. */
> > -};
> > -
> >  static efi_system_table_t __init *xen_efi_probe(void)
> >  {
> >  	struct xen_platform_op op = {
> > @@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
> >
> >  	/* Here we know that Xen runs on EFI platform. */
> >
> > -	efi = efi_xen;
> > +	efi.get_time = xen_efi_get_time;
> > +	efi.set_time = xen_efi_set_time;
> > +	efi.get_wakeup_time = xen_efi_get_wakeup_time;
> > +	efi.set_wakeup_time = xen_efi_set_wakeup_time;
> > +	efi.get_variable = xen_efi_get_variable;
> > +	efi.get_next_variable = xen_efi_get_next_variable;
> > +	efi.set_variable = xen_efi_set_variable;
> > +	efi.query_variable_info = xen_efi_query_variable_info;
> > +	efi.update_capsule = xen_efi_update_capsule;
> > +	efi.query_capsule_caps = xen_efi_query_capsule_caps;
> > +	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
> > +	efi.reset_system = xen_efi_reset_system;
>
> This is a step back stylistically, as you lost the nice vertical tabulation of the
> original initializer ...

If you wish and others do not object I can realign it back.

Daniel

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