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[PATCH v6 07/16] tools/lguest: force disable tboot and apm

From "Luis R. Rodriguez" <mcgrof@kernel.org>
Newsgroups linux.kernel
Subject [PATCH v6 07/16] tools/lguest: force disable tboot and apm
Date 2016-04-14 02:20 +0200
Message-ID <rnDaN-1iT-3@gated-at.bofh.it> (permalink)
References <rnD18-1fm-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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The paravirt_enabled() check is going away, the area tossed to
the kernel on lguest is not zeroed out, so ensure lguest force
disables tboot and apm just in case the kernel file being read
might have this set for whatever reason.

Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
 tools/lguest/lguest.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index ff0aa580c6e1..0aa75af6e862 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -3357,6 +3357,12 @@ int main(int argc, char *argv[])
 	/* Tell the entry path not to try to reload segment registers. */
 	boot->hdr.loadflags |= KEEP_SEGMENTS;
 
+	/* We don't support tboot */
+	boot->tboot_addr = 0;
+
+	/* Ensure this is 0 to prevent apm from loading */
+	boot->apm_bios_info.version = 0;
+
 	/* We tell the kernel to initialize the Guest. */
 	tell_kernel(start);
 
-- 
2.7.2

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Thread

[PATCH v6 00/16] x86: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 06/16] x86/init: use a platform legacy quirk for ebda "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 12/16] x86, ACPI: parse ACPI_FADT_LEGACY_DEVICES "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 11/16] pnpbios: replace paravirt_enabled() check with legacy device check "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 08/16] apm32: remove paravirt_enabled() use "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 07/16] tools/lguest: force disable tboot and apm "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 03/16] tools/lguest: make lguest launcher use X86_SUBARCH_LGUEST explicitly "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 01/16] x86/boot: enumerate documentation for the x86 hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 16/16] x86/init: disable pnpbios and rtc for X86_SUBARCH_CE4100 "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 10/16] x86/cpu/intel: remove not needed paravirt_enabled() for f00f work around "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 14/16] x86/paravirt: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 15/16] x86/init: disable pnpbios for X86_SUBARCH_INTEL_MID "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 13/16] x86/init: rename ebda code file "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
  [PATCH v6 04/16] x86/rtc: replace paravirt rtc check with platform legacy quirk "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:10 +0200
    Re: [PATCH v6 04/16] x86/rtc: replace paravirt rtc check with  platform legacy quirk Juergen Gross <jgross@suse.com> - 2016-04-14 06:30 +0200
  [PATCH v6 07/16] tools/lguest: force disable tboot and apm "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:20 +0200
  [PATCH v6 05/16] x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:20 +0200
  [PATCH v6 12/16] x86, ACPI: parse ACPI_FADT_LEGACY_DEVICES "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-14 02:20 +0200

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