From: Rick Edgecombe <rick.p.edgecombe@intel.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, linux-mm@kvack.org, luto@kernel.org,
peterz@infradead.org, dave.hansen@intel.com, pbonzini@redhat.com,
sean.j.christopherson@intel.com, keescook@chromium.org
Cc: kristen@linux.intel.com, deneen.t.dock@intel.com,
Rick Edgecombe <rick.p.edgecombe@intel.com>
Subject: [RFC PATCH 13/13] x86/Kconfig: Add Kconfig for KVM based XO
Date: Thu, 3 Oct 2019 14:24:00 -0700 [thread overview]
Message-ID: <20191003212400.31130-14-rick.p.edgecombe@intel.com> (raw)
In-Reply-To: <20191003212400.31130-1-rick.p.edgecombe@intel.com>
Add CONFIG_KVM_XO for supporting KVM based execute only memory.
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
---
arch/x86/Kconfig | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 222855cc0158..3a3af2a456e8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -802,6 +802,19 @@ config KVM_GUEST
underlying device model, the host provides the guest with
timing infrastructure such as time of day, and system time
+config KVM_XO
+ bool "Support for KVM based execute only virtual memory permissions"
+ select DYNAMIC_PHYSICAL_MASK
+ select SPARSEMEM_VMEMMAP
+ depends on KVM_GUEST && X86_64
+ default y
+ help
+ This option enables support for execute only memory for KVM guests. If
+ support from the underlying VMM is not detected at boot, this
+ capability will automatically disable.
+
+ If you are unsure how to answer this question, answer Y.
+
config PVH
bool "Support for running PVH guests"
---help---
--
2.17.1
next prev parent reply other threads:[~2019-10-03 21:39 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 21:23 [RFC PATCH 00/13] XOM for KVM guest userspace Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 01/13] kvm: Enable MTRR to work with GFNs with perm bits Rick Edgecombe
2019-10-14 6:47 ` Yu Zhang
2019-10-14 18:44 ` Edgecombe, Rick P
2019-10-03 21:23 ` [RFC PATCH 02/13] kvm: Add support for X86_FEATURE_KVM_XO Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 03/13] kvm: Add XO memslot type Rick Edgecombe
2019-10-04 7:27 ` Paolo Bonzini
2019-10-04 19:06 ` Edgecombe, Rick P
2019-10-06 16:15 ` Paolo Bonzini
2019-10-03 21:23 ` [RFC PATCH 04/13] kvm, vmx: Add support for gva exit qualification Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 05/13] kvm: Add #PF injection for KVM XO Rick Edgecombe
2019-10-04 7:42 ` Paolo Bonzini
2019-10-04 19:11 ` Edgecombe, Rick P
2019-10-03 21:23 ` [RFC PATCH 06/13] kvm: Add KVM_CAP_EXECONLY_MEM Rick Edgecombe
2019-10-04 7:24 ` Paolo Bonzini
2019-10-04 19:11 ` Edgecombe, Rick P
2019-10-03 21:23 ` [RFC PATCH 07/13] kvm: Add docs for KVM_CAP_EXECONLY_MEM Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 08/13] x86/boot: Rename USE_EARLY_PGTABLE_L5 Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 09/13] x86/cpufeature: Add detection of KVM XO Rick Edgecombe
2019-10-29 23:33 ` Kees Cook
2019-10-29 23:52 ` Edgecombe, Rick P
2019-10-30 14:55 ` Sean Christopherson
2019-10-30 21:02 ` Edgecombe, Rick P
2019-10-03 21:23 ` [RFC PATCH 10/13] x86/mm: Add NR page bit for " Rick Edgecombe
2019-10-04 7:33 ` Paolo Bonzini
2019-10-03 21:23 ` [RFC PATCH 11/13] x86, ptdump: Add NR bit to page table dump Rick Edgecombe
2019-10-03 21:23 ` [RFC PATCH 12/13] mmap: Add XO support for KVM XO Rick Edgecombe
2019-10-04 7:34 ` Paolo Bonzini
2019-10-04 19:12 ` Edgecombe, Rick P
2019-10-03 21:24 ` Rick Edgecombe [this message]
2019-10-29 23:36 ` [RFC PATCH 13/13] x86/Kconfig: Add Kconfig for KVM based XO Kees Cook
2019-10-30 0:01 ` Edgecombe, Rick P
2019-10-30 18:36 ` Kees Cook
2019-10-04 7:22 ` [RFC PATCH 00/13] XOM for KVM guest userspace Paolo Bonzini
2019-10-04 19:03 ` Edgecombe, Rick P
2019-10-04 14:56 ` Andy Lutomirski
2019-10-04 20:09 ` Edgecombe, Rick P
2019-10-05 1:33 ` Andy Lutomirski
2019-10-07 18:14 ` Edgecombe, Rick P
2019-10-29 23:40 ` Kees Cook
2019-10-30 0:27 ` Edgecombe, Rick P
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