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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-25 20:11:30 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-25 20:11:30 +0300 |
commit | d8e473182ab9e85708067be81d20424045d939fa (patch) | |
tree | 53336e3105f7054b46fb9fd75fdbe3dbb3aa79de /arch/x86/include/asm/shared | |
parent | 489fa31ea873282b41046d412ec741f93946fc2d (diff) | |
parent | 1e70c680375aa33cca97bff0bca68c0f82f5023c (diff) | |
download | linux-d8e473182ab9e85708067be81d20424045d939fa.tar.xz |
Merge tag 'x86_tdx_for_6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel Trust Domain Extensions (TDX) updates from Dave Hansen:
"Other than a minor fixup, the content here is to ensure that TDX
guests never see virtualization exceptions (#VE's) that might be
induced by the untrusted VMM.
This is a highly desirable property. Without it, #VE exception
handling would fall somewhere between NMIs, machine checks and total
insanity. With it, #VE handling remains pretty mundane.
Summary:
- Fixup comment typo
- Prevent unexpected #VE's from:
- Hosts removing perfectly good guest mappings (SEPT_VE_DISABLE)
- Excessive #VE notifications (NOTIFY_ENABLES) which are delivered
via a #VE"
* tag 'x86_tdx_for_6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tdx: Do not corrupt frame-pointer in __tdx_hypercall()
x86/tdx: Disable NOTIFY_ENABLES
x86/tdx: Relax SEPT_VE_DISABLE check for debug TD
x86/tdx: Use ReportFatalError to report missing SEPT_VE_DISABLE
x86/tdx: Expand __tdx_hypercall() to handle more arguments
x86/tdx: Refactor __tdx_hypercall() to allow pass down more arguments
x86/tdx: Add more registers to struct tdx_hypercall_args
x86/tdx: Fix typo in comment in __tdx_hypercall()
Diffstat (limited to 'arch/x86/include/asm/shared')
-rw-r--r-- | arch/x86/include/asm/shared/tdx.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h index 559176887791..4a03993e0785 100644 --- a/arch/x86/include/asm/shared/tdx.h +++ b/arch/x86/include/asm/shared/tdx.h @@ -21,12 +21,18 @@ * This is a software only structure and not part of the TDX module/VMM ABI. */ struct tdx_hypercall_args { + u64 r8; + u64 r9; u64 r10; u64 r11; u64 r12; u64 r13; u64 r14; u64 r15; + u64 rdi; + u64 rsi; + u64 rbx; + u64 rdx; }; /* Used to request services from the VMM */ |