From: "Nadav Har'El" <nyh@il.ibm.com>
To: kvm@vger.kernel.org
Cc: avi@redhat.com
Subject: [PATCH 29/31] nVMX: Add VMX to list of supported cpuid features
Date: Wed, 25 May 2011 23:16:10 +0300 [thread overview]
Message-ID: <201105252016.p4PKGAUG011383@rice.haifa.ibm.com> (raw)
In-Reply-To: 1306353651-nyh@il.ibm.com
If the "nested" module option is enabled, add the "VMX" CPU feature to the
list of CPU features KVM advertises with the KVM_GET_SUPPORTED_CPUID ioctl.
Qemu uses this ioctl, and intersects KVM's list with its own list of desired
cpu features (depending on the -cpu option given to qemu) to determine the
final list of features presented to the guest.
Signed-off-by: Nadav Har'El <nyh@il.ibm.com>
---
arch/x86/kvm/vmx.c | 2 ++
1 file changed, 2 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2011-05-25 22:41:14.000000000 +0300
+++ .after/arch/x86/kvm/vmx.c 2011-05-25 22:41:14.000000000 +0300
@@ -6298,6 +6298,8 @@ static void vmx_cpuid_update(struct kvm_
static void vmx_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
{
+ if (func == 1 && nested)
+ entry->ecx |= bit(X86_FEATURE_VMX);
}
/*
next prev parent reply other threads:[~2011-05-25 20:16 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-25 20:01 [PATCH 0/31] nVMX: Nested VMX, v11 Nadav Har'El
2011-05-25 20:01 ` [PATCH 01/31] nVMX: Keep list of loaded VMCSs, instead of vcpus Nadav Har'El
2011-05-25 20:02 ` [PATCH 02/31] nVMX: Add "nested" module option to kvm_intel Nadav Har'El
2011-05-25 20:02 ` [PATCH 03/31] nVMX: Implement VMXON and VMXOFF Nadav Har'El
2011-05-25 20:03 ` [PATCH 04/31] nVMX: Allow setting the VMXE bit in CR4 Nadav Har'El
2011-05-25 20:03 ` [PATCH 05/31] nVMX: Introduce vmcs12: a VMCS structure for L1 Nadav Har'El
2011-05-25 20:04 ` [PATCH 06/31] nVMX: Implement reading and writing of VMX MSRs Nadav Har'El
2011-05-25 20:04 ` [PATCH 07/31] nVMX: Decoding memory operands of VMX instructions Nadav Har'El
2011-05-25 20:05 ` [PATCH 08/31] nVMX: Introduce vmcs02: VMCS used to run L2 Nadav Har'El
2011-05-25 20:05 ` [PATCH 09/31] nVMX: Add VMCS fields to the vmcs12 Nadav Har'El
2011-05-25 20:06 ` [PATCH 10/31] nVMX: Success/failure of VMX instructions Nadav Har'El
2011-05-25 20:06 ` [PATCH 11/31] nVMX: Implement VMCLEAR Nadav Har'El
2011-05-25 20:07 ` [PATCH 12/31] nVMX: Implement VMPTRLD Nadav Har'El
2011-05-25 20:08 ` [PATCH 13/31] nVMX: Implement VMPTRST Nadav Har'El
2011-05-25 20:08 ` [PATCH 14/31] nVMX: Implement VMREAD and VMWRITE Nadav Har'El
2011-05-25 20:09 ` [PATCH 15/31] nVMX: Move host-state field setup to a function Nadav Har'El
2011-05-25 20:09 ` [PATCH 16/31] nVMX: Move control field setup to functions Nadav Har'El
2011-05-25 20:10 ` [PATCH 17/31] nVMX: Prepare vmcs02 from vmcs01 and vmcs12 Nadav Har'El
2011-05-25 20:10 ` [PATCH 18/31] nVMX: Implement VMLAUNCH and VMRESUME Nadav Har'El
2011-05-25 20:11 ` [PATCH 19/31] nVMX: No need for handle_vmx_insn function any more Nadav Har'El
2011-05-25 20:11 ` [PATCH 20/31] nVMX: Exiting from L2 to L1 Nadav Har'El
2011-05-25 20:12 ` [PATCH 21/31] nVMX: vmcs12 checks on nested entry Nadav Har'El
2011-05-25 20:12 ` [PATCH 22/31] nVMX: Deciding if L0 or L1 should handle an L2 exit Nadav Har'El
2011-05-25 20:13 ` [PATCH 23/31] nVMX: Correct handling of interrupt injection Nadav Har'El
2011-05-25 20:13 ` [PATCH 24/31] nVMX: Correct handling of exception injection Nadav Har'El
2011-05-25 20:14 ` [PATCH 25/31] nVMX: Correct handling of idt vectoring info Nadav Har'El
2011-05-25 20:14 ` [PATCH 26/31] nVMX: Handling of CR0 and CR4 modifying instructions Nadav Har'El
2011-05-25 20:15 ` [PATCH 27/31] nVMX: Further fixes for lazy FPU loading Nadav Har'El
2011-05-25 20:15 ` [PATCH 28/31] nVMX: Additional TSC-offset handling Nadav Har'El
2011-05-25 20:16 ` Nadav Har'El [this message]
2011-05-25 20:16 ` [PATCH 30/31] nVMX: Miscellenous small corrections Nadav Har'El
2011-05-25 20:17 ` [PATCH 31/31] nVMX: Documentation Nadav Har'El
2011-06-01 10:45 ` Jan Kiszka
2011-06-02 8:15 ` Nadav Har'El
2011-06-06 8:36 ` Avi Kivity
2011-05-26 1:30 ` [PATCH 0/31] nVMX: Nested VMX, v11 Tian, Kevin
2011-05-31 18:04 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2011-05-16 19:43 [PATCH 0/31] nVMX: Nested VMX, v10 Nadav Har'El
2011-05-16 19:58 ` [PATCH 29/31] nVMX: Add VMX to list of supported cpuid features Nadav Har'El
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