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tools/lguest: Force disable tboot and APM

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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.

Signed-off-by: Luis R. Rodriguez <[email protected]>
Acked-by: Rusty Russell <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Luis R. Rodriguez 2016-04-13 17:04:37 -07:00 • committed by Ingo Molnar
commit 4650459032
1 changed files with 6 additions and 0 deletions
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6
tools/lguest/lguest.c
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@ -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);