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[Qemu-devel] [RFC PATCH v4 18/20] target/i386: add cpuid Fn8000_001f
From: |
Brijesh Singh |
Subject: |
[Qemu-devel] [RFC PATCH v4 18/20] target/i386: add cpuid Fn8000_001f |
Date: |
Wed, 8 Mar 2017 15:54:20 -0500 |
User-agent: |
StGit/0.17.1-dirty |
Fn8000_001f cpuid provides the memory encryption (aka C-bit) location
in a page table for the SEV-enabled guest.
Signed-off-by: Brijesh Singh <address@hidden>
---
target/i386/cpu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index fba9212..44662eb 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -40,6 +40,7 @@
#include "qapi/visitor.h"
#include "qom/qom-qobject.h"
#include "sysemu/arch_init.h"
+#include "sysemu/sev.h"
#if defined(CONFIG_KVM)
#include <linux/kvm_para.h>
@@ -2966,6 +2967,11 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
*edx = 0;
}
break;
+ case 0x8000001F:
+ if (sev_enabled()) {
+ host_cpuid(index, 0, eax, ebx, ecx, edx);
+ }
+ break;
case 0xC0000000:
*eax = env->cpuid_xlevel2;
*ebx = 0;
- [Qemu-devel] [RFC PATCH v4 06/20] core: add new security-policy object, (continued)
- [Qemu-devel] [RFC PATCH v4 06/20] core: add new security-policy object, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 11/20] sev: add LAUNCH_START command, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 03/20] exec: add guest RAM read and write ops, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 10/20] vl: add memory encryption support, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 09/20] hmp: display memory encryption support in 'info kvm', Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 12/20] SEV: add GUEST_STATUS command, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 14/20] sev: add LAUNCH_FINISH command, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 18/20] target/i386: add cpuid Fn8000_001f,
Brijesh Singh <=
- [Qemu-devel] [RFC PATCH v4 16/20] sev: add DEBUG_ENCRYPT command, Brijesh Singh, 2017/03/08
- Re: [Qemu-devel] [RFC PATCH v4 00/20] x86: Secure Encrypted Virtualization (AMD), Eduardo Habkost, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 07/20] kvm: add memory encryption api support, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 15/20] sev: add DEBUG_DECRYPT command, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 17/20] target/i386: encrypt bios rom when memory encryption is enabled, Brijesh Singh, 2017/03/08
- [Qemu-devel] [RFC PATCH v4 20/20] migration: disable save/restore and migration when SEV is active, Brijesh Singh, 2017/03/08