From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Kevin Tian <kevin.tian@intel.com>,
Jun Nakajima <jun.nakajima@intel.com>,
Jan Beulich <JBeulich@suse.com>
Subject: [PATCH 0/6] x86/vvmx: Fixes to MSR_BITMAP interception handling
Date: Wed, 19 Jul 2017 12:57:51 +0100 [thread overview]
Message-ID: <1500465477-23793-1-git-send-email-andrew.cooper3@citrix.com> (raw)
This fixes a bug where HyperV (Windows Server 2012) crashes, because it
attempts to intercept the x2apic MSRs for its L2 guests, but Xen uses a stale
mapping of gfn 0 for the MSR_BITMAP.
There are many more bugs in this area. I'm fairly sure the merging of
low/high half accesses aren't yet correct.
Andrew Cooper (6):
x86/vmx: Improvements to vmx_{dis,en}able_intercept_for_msr()
x86/vpmu: Use vmx_{clear,set}_msr_intercept() rather than opencoding them
x86/vmx: Introduce and use struct vmx_msr_bitmap
x86/vvmx: Switch nested MSR intercept handling to use struct vmx_msr_bitmap
x86/vvmx: Fix handing of the MSR_BITMAP field with VMCS shadowing
x86/vvmx: Fix auditing of MSR_BITMAP parameter
xen/arch/x86/cpu/vpmu_intel.c | 64 +++++++------------
xen/arch/x86/hvm/vmx/vmcs.c | 126 +++++++++++++++++--------------------
xen/arch/x86/hvm/vmx/vmx.c | 34 ++++------
xen/arch/x86/hvm/vmx/vvmx.c | 44 ++++++++-----
xen/include/asm-x86/hvm/vmx/vmcs.h | 28 ++++++---
5 files changed, 143 insertions(+), 153 deletions(-)
--
2.1.4
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next reply other threads:[~2017-07-19 11:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-19 11:57 Andrew Cooper [this message]
2017-07-19 11:57 ` [PATCH 1/6] x86/vmx: Improvements to vmx_{dis, en}able_intercept_for_msr() Andrew Cooper
2017-07-27 5:43 ` Tian, Kevin
2017-07-19 11:57 ` [PATCH 2/6] x86/vpmu: Use vmx_{clear, set}_msr_intercept() rather than opencoding them Andrew Cooper
2017-07-19 12:17 ` Andrew Cooper
2017-07-27 5:46 ` Tian, Kevin
2017-07-19 13:33 ` Boris Ostrovsky
2017-07-19 11:57 ` [PATCH 3/6] x86/vmx: Introduce and use struct vmx_msr_bitmap Andrew Cooper
2017-07-27 6:02 ` Tian, Kevin
2017-07-27 8:30 ` Andrew Cooper
2017-07-27 9:01 ` Tian, Kevin
2017-07-19 11:57 ` [PATCH 4/6] x86/vvmx: Switch nested MSR intercept handling to " Andrew Cooper
2017-07-27 6:09 ` Tian, Kevin
2017-07-19 11:57 ` [PATCH 5/6] x86/vvmx: Fix handing of the MSR_BITMAP field with VMCS shadowing Andrew Cooper
2017-07-26 8:50 ` Sergey Dyasli
2017-07-27 6:11 ` Tian, Kevin
2017-07-19 11:57 ` [PATCH 6/6] x86/vvmx: Fix auditing of MSR_BITMAP parameter Andrew Cooper
2017-07-27 6:13 ` Tian, Kevin
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