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| Started by | Matt Fleming <matt@codeblueprint.co.uk> |
|---|---|
| First post | 2016-04-25 22:10 +0200 |
| Last post | 2016-04-28 12:50 +0200 |
| Articles | 2 — 2 participants |
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[PATCH 39/40] x86/efi: Enable runtime call flag checking Matt Fleming <matt@codeblueprint.co.uk> - 2016-04-25 22:10 +0200
[tip:efi/core] x86/efi: Enable runtime call flag checking tip-bot for Mark Rutland <tipbot@zytor.com> - 2016-04-28 12:50 +0200
| From | Matt Fleming <matt@codeblueprint.co.uk> |
|---|---|
| Date | 2016-04-25 22:10 +0200 |
| Subject | [PATCH 39/40] x86/efi: Enable runtime call flag checking |
| Message-ID | <rrUZt-3iQ-37@gated-at.bofh.it> |
From: Mark Rutland <mark.rutland@arm.com> Define ARCH_EFI_IRQ_FLAGS_MASK for x86, which will enable the generic runtime wrapper code to detect when firmware erroneously modifies flags over a runtime services function call. For x86 (both 32-bit and 64-bit), we only need check the interrupt flag. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Leif Lindholm <leif.lindholm@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: David Howells <dhowells@redhat.com> Cc: Harald Hoyer harald@redhat.com Cc: Kweh Hock Leong <hock.leong.kweh@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Raphael Hertzog <hertzog@debian.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Peter Jones <pjones@redhat.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> --- arch/x86/include/asm/efi.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index fb085ce00bd2..78d1e7467eae 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -3,6 +3,7 @@ #include <asm/fpu/api.h> #include <asm/pgtable.h> +#include <asm/processor-flags.h> #include <asm/tlb.h> /* @@ -28,8 +29,9 @@ #define MAX_CMDLINE_ADDRESS UINT_MAX -#ifdef CONFIG_X86_32 +#define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF +#ifdef CONFIG_X86_32 extern unsigned long asmlinkage efi_call_phys(void *, ...); -- 2.7.3
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| From | tip-bot for Mark Rutland <tipbot@zytor.com> |
|---|---|
| Date | 2016-04-28 12:50 +0200 |
| Subject | [tip:efi/core] x86/efi: Enable runtime call flag checking |
| Message-ID | <rsRGa-1DA-35@gated-at.bofh.it> |
| In reply to | #1386818 |
Commit-ID: 9788375dc4cdc9c00645028384fb40402eab774f Gitweb: http://git.kernel.org/tip/9788375dc4cdc9c00645028384fb40402eab774f Author: Mark Rutland <mark.rutland@arm.com> AuthorDate: Mon, 25 Apr 2016 21:07:11 +0100 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Thu, 28 Apr 2016 11:34:13 +0200 x86/efi: Enable runtime call flag checking Define ARCH_EFI_IRQ_FLAGS_MASK for x86, which will enable the generic runtime wrapper code to detect when firmware erroneously modifies flags over a runtime services function call. For x86 (both 32-bit and 64-bit), we only need check the interrupt flag. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Darren Hart <dvhart@infradead.org> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Hannes Reinecke <hare@suse.de> Cc: Harald Hoyer harald@redhat.com Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Kweh Hock Leong <hock.leong.kweh@intel.com> Cc: Leif Lindholm <leif.lindholm@linaro.org> Cc: Peter Jones <pjones@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Raphael Hertzog <hertzog@debian.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1461614832-17633-40-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/x86/include/asm/efi.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index fb085ce..78d1e74 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -3,6 +3,7 @@ #include <asm/fpu/api.h> #include <asm/pgtable.h> +#include <asm/processor-flags.h> #include <asm/tlb.h> /* @@ -28,8 +29,9 @@ #define MAX_CMDLINE_ADDRESS UINT_MAX -#ifdef CONFIG_X86_32 +#define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF +#ifdef CONFIG_X86_32 extern unsigned long asmlinkage efi_call_phys(void *, ...);
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