linux_dsm_epyc7002/arch/x86
Radim Krčmář 94ffba4846 x86/kvmclock: set pvti_cpu0_va after enabling kvmclock
pvti_cpu0_va is the address of shared kvmclock data structure.

pvti_cpu0_va is currently kept unset (1) on 32 bit systems, (2) when
kvmclock vsyscall is disabled, and (3) if kvmclock is not stable.
This poses a problem, because kvm_ptp needs pvti_cpu0_va, but (1) can
work on 32 bit, (2) has little relation to the vsyscall, and (3) does
not need stable kvmclock (although kvmclock won't be used for system
clock if it's not stable, so kvm_ptp is pointless in that case).

Expose pvti_cpu0_va whenever kvmclock is enabled to allow all users to
work with it.

This fixes a regression found on Gentoo: https://bugs.gentoo.org/658544.

Fixes: 9f08890ab9 ("x86/pvclock: add setter for pvclock_pvti_cpu0_va")
Cc: stable@vger.kernel.org
Reported-by: Andreas Steinmetz <ast@domdv.de>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-15 17:44:16 +02:00
..
boot Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-05-20 11:28:32 -07:00
configs
crypto
entry x86/vdso: Remove unused file 2018-05-05 09:02:36 +02:00
events perf/x86/cstate: Fix possible Spectre-v1 indexing for pkg_msr 2018-05-05 08:37:31 +02:00
hyperv
ia32 syscalls/x86: auto-create compat_sys_*() prototypes 2018-04-02 20:16:18 +02:00
include Merge branch 'speck-v20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-05-21 11:23:26 -07:00
kernel x86/kvmclock: set pvti_cpu0_va after enabling kvmclock 2018-07-15 17:44:16 +02:00
kvm x86/kvm/Kconfig: Ensure CRYPTO_DEV_CCP_DD state at minimum matches KVM_AMD 2018-07-15 17:36:57 +02:00
lib Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 15:16:43 -07:00
math-emu
mm x86/pkeys: Override pkey when moving away from PROT_EXEC 2018-05-14 11:14:45 +02:00
net bpf, x64: fix memleak when not converging on calls 2018-05-02 12:35:47 -07:00
oprofile
pci Merge branch 'x86-dma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 17:18:45 -07:00
platform Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 17:46:37 -07:00
power x86/power/64: Fix page-table setup for temporary text mapping 2018-04-20 11:52:00 +02:00
purgatory kernel/kexec_file.c: move purgatories sha256 to common code 2018-04-13 17:10:28 -07:00
ras
realmode
tools
um Merge git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2018-04-11 16:36:47 -07:00
video
xen Some of the ftrace internal events use a zero for a data size of 2018-05-16 16:45:23 -07:00
.gitignore
Kbuild
Kconfig x86/pti: Filter at vma->vm_page_prot population 2018-04-25 11:02:51 +02:00
Kconfig.cpu
Kconfig.debug
Makefile Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 14:37:03 -07:00
Makefile_32.cpu
Makefile.um