From: Xiao Guangrong <guangrong.xiao@linux.intel.com>
To: pbonzini@redhat.com
Cc: gleb@kernel.org, mtosatti@redhat.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, dmatlack@google.com,
Xiao Guangrong <guangrong.xiao@linux.intel.com>
Subject: [PATCH v2 00/15] vMTRR bugfix and optimization
Date: Mon, 15 Jun 2015 16:55:20 +0800 [thread overview]
Message-ID: <1434358535-19923-1-git-send-email-guangrong.xiao@linux.intel.com> (raw)
Changlog:
- let's fix the bugs for noncoherent_dma guests first
- these changes are from Paolo's review
1) use inline functions instead of union definition for 'struct kvm_mtrr'
2) improve code style
3) fix fixed_msr_to_range_index which does not return the actual value
4) introduce kvm_set_var_mtrr() to make the code more clearer
5) improve mtrr_for_each_mem_type() APIs and clean it up
6) drop @unit_size in 'struct fixed_mtrr_segment'
- these changes are from David Matlack's review
1) improve comment
2) fix fixed_mtrr_range_end_addr that did not count entries correctly
There are some bugs in current code if noncoherent_dma is detected:
- KVM still uses hugepage even if the 4K pages in that ranges span between
on different memory types and uses the cache type of first page to do memory
mapping
- CR0.CD is not checked so that guest memory is not UC as it expected
This patchset fixes these bugs and also do optimization and cleanups.
Xiao Guangrong (15):
KVM: x86: fix CR0.CD virtualization
KVM: x86: move MTRR related code to a separate file
KVM: MTRR: handle MSR_MTRRcap in kvm_mtrr_get_msr
KVM: MTRR: remove mtrr_state.have_fixed
KVM: MTRR: exactly define the size of variable MTRRs
KVM: MTRR: clean up mtrr default type
KVM: MTRR: do not split 64 bits MSR content
KVM: MTRR: improve kvm_mtrr_get_guest_memory_type
KVM: MTRR: introduce fixed_mtrr_segment table
KVM: MTRR: introduce var_mtrr_range
KVM: MTRR: sort variable MTRRs
KVM: MTRR: introduce fixed_mtrr_addr_* functions
KVM: MTRR: introduce mtrr_for_each_mem_type
KVM: MTRR: simplify kvm_mtrr_get_guest_memory_type
KVM: MTRR: do not map huage page for non-consistent range
arch/x86/include/asm/kvm_host.h | 17 +-
arch/x86/kvm/Makefile | 2 +-
arch/x86/kvm/mmu.c | 123 ++-----
arch/x86/kvm/mtrr.c | 708 ++++++++++++++++++++++++++++++++++++++++
arch/x86/kvm/vmx.c | 32 +-
arch/x86/kvm/x86.c | 223 +------------
arch/x86/kvm/x86.h | 6 +
7 files changed, 778 insertions(+), 333 deletions(-)
create mode 100644 arch/x86/kvm/mtrr.c
--
2.1.0
next reply other threads:[~2015-06-15 9:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-15 8:55 Xiao Guangrong [this message]
2015-06-15 8:55 ` [PATCH v2 01/15] KVM: x86: fix CR0.CD virtualization Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 02/15] KVM: x86: move MTRR related code to a separate file Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 03/15] KVM: MTRR: handle MSR_MTRRcap in kvm_mtrr_get_msr Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 04/15] KVM: MTRR: remove mtrr_state.have_fixed Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 05/15] KVM: MTRR: exactly define the size of variable MTRRs Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 06/15] KVM: MTRR: clean up mtrr default type Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 07/15] KVM: MTRR: do not split 64 bits MSR content Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 08/15] KVM: MTRR: improve kvm_mtrr_get_guest_memory_type Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 09/15] KVM: MTRR: introduce fixed_mtrr_segment table Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 10/15] KVM: MTRR: introduce var_mtrr_range Xiao Guangrong
2015-06-17 15:38 ` Paolo Bonzini
2015-06-15 8:55 ` [PATCH v2 11/15] KVM: MTRR: sort variable MTRRs Xiao Guangrong
2015-06-17 15:40 ` Paolo Bonzini
2015-06-17 16:11 ` Paolo Bonzini
2015-06-22 11:24 ` Paolo Bonzini
2015-06-22 11:24 ` Paolo Bonzini
2015-06-23 2:29 ` Xiao Guangrong
2015-06-23 2:29 ` Xiao Guangrong
2015-06-23 8:00 ` Paolo Bonzini
2015-06-23 8:27 ` Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 12/15] KVM: MTRR: introduce fixed_mtrr_addr_* functions Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 13/15] KVM: MTRR: introduce mtrr_for_each_mem_type Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 14/15] KVM: MTRR: simplify kvm_mtrr_get_guest_memory_type Xiao Guangrong
2015-06-15 8:55 ` [PATCH v2 15/15] KVM: MTRR: do not map huage page for non-consistent range Xiao Guangrong
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