mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-27 12:57:53 +00:00
No description
a33ba1bf0d
Open code setting "vcpu->arch.pat" in vmx_set_msr() instead of bouncing through kvm_set_msr_common() to get to the same code in kvm_mtrr_set_msr(). This aligns VMX with SVM, avoids hiding a very simple operation behind a relatively complicated function call (finding the PAT MSR case in kvm_set_msr_common() is non-trivial), and most importantly, makes it clear that not unwinding the VMCS updates if kvm_set_msr_common() isn't a bug (because kvm_set_msr_common() can never fail for PAT). Opportunistically set vcpu->arch.pat before updating the VMCS info so that a future patch can move the common bits (back) into kvm_set_msr_common() without a functional change. Note, MSR_IA32_CR_PAT is 0x277, and is very subtly handled by case 0x200 ... MSR_IA32_MC0_CTL2 - 1: in kvm_set_msr_common(). Cc: Kai Huang <kai.huang@intel.com> Signed-off-by: Wenyao Hai <haiwenyao@uniontech.com> [sean: massage changelog, hoist setting vcpu->arch.pat up] Reviewed-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20230511233351.635053-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
||
---|---|---|
arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.rustfmt.toml | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.