All of lore.kernel.org
 help / color / mirror / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: david@redhat.com
Subject: [PATCH 1/6] KVM: nVMX: we support 1GB EPT pages
Date: Thu, 30 Mar 2017 11:55:27 +0200	[thread overview]
Message-ID: <1490867732-16743-2-git-send-email-pbonzini@redhat.com> (raw)
In-Reply-To: <1490867732-16743-1-git-send-email-pbonzini@redhat.com>

Large pages at the PDPE level can be emulated by the MMU, so the bit
can be set unconditionally in the EPT capabilities MSR.  The same is
true of 2MB EPT pages, though all Intel processors with EPT in practice
support those.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 40b80e8959e1..0e61b9226bf2 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2759,14 +2759,14 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 		vmx->nested.nested_vmx_secondary_ctls_high |=
 			SECONDARY_EXEC_ENABLE_EPT;
 		vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
-			 VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
-			 VMX_EPT_INVEPT_BIT;
+			 VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT;
 		if (cpu_has_vmx_ept_execute_only())
 			vmx->nested.nested_vmx_ept_caps |=
 				VMX_EPT_EXECUTE_ONLY_BIT;
 		vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept;
 		vmx->nested.nested_vmx_ept_caps |= VMX_EPT_EXTENT_GLOBAL_BIT |
-			VMX_EPT_EXTENT_CONTEXT_BIT;
+			VMX_EPT_EXTENT_CONTEXT_BIT | VMX_EPT_2MB_PAGE_BIT |
+			VMX_EPT_1GB_PAGE_BIT;
 	} else
 		vmx->nested.nested_vmx_ept_caps = 0;
 
-- 
1.8.3.1

  reply	other threads:[~2017-03-30  9:57 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-30  9:55 [PATCH v2 0/6] KVM: nVMX: nested EPT improvements and A/D bits, RDRAND and RDSEED exits Paolo Bonzini
2017-03-30  9:55 ` Paolo Bonzini [this message]
2017-03-30  9:55 ` [PATCH 2/6] KVM: VMX: remove bogus check for invalid EPT violation Paolo Bonzini
2017-03-30 16:30   ` Jim Mattson
2017-04-03 11:17   ` David Hildenbrand
2017-04-12 20:00   ` David Hildenbrand
2017-03-30  9:55 ` [PATCH 3/6] kvm: x86: MMU support for EPT accessed/dirty bits Paolo Bonzini
2017-03-31 13:52   ` Radim Krčmář
2017-03-30  9:55 ` [PATCH 4/6] kvm: nVMX: support " Paolo Bonzini
2017-03-31 16:24   ` Radim Krčmář
2017-03-31 16:26     ` Paolo Bonzini
2017-04-11 23:35   ` Bandan Das
2017-04-11 23:54     ` Paolo Bonzini
2017-04-12 23:02       ` Bandan Das
2017-04-14  5:17         ` Paolo Bonzini
2017-03-30  9:55 ` [PATCH 5/6] KVM: VMX: add missing exit reasons Paolo Bonzini
2017-03-30  9:55 ` [PATCH 6/6] KVM: nVMX: support RDRAND and RDSEED exiting Paolo Bonzini
2017-03-30 16:54   ` Jim Mattson
2017-03-31 11:13 ` [PATCH v2 0/6] KVM: nVMX: nested EPT improvements and A/D bits, RDRAND and RDSEED exits Paolo Bonzini
  -- strict thread matches above, loose matches on Subject: below --
2017-03-08 18:03 [PATCH " Paolo Bonzini
2017-03-08 18:03 ` [PATCH 1/6] KVM: nVMX: we support 1GB EPT pages Paolo Bonzini
2017-03-09 10:34   ` David Hildenbrand

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1490867732-16743-2-git-send-email-pbonzini@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=david@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.