linux_dsm_epyc7002/arch
Vitaly Kuznetsov 2bc39970e9 x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID
With every new Hyper-V Enlightenment we implement we're forced to add a
KVM_CAP_HYPERV_* capability. While this approach works it is fairly
inconvenient: the majority of the enlightenments we do have corresponding
CPUID feature bit(s) and userspace has to know this anyways to be able to
expose the feature to the guest.

Add KVM_GET_SUPPORTED_HV_CPUID ioctl (backed by KVM_CAP_HYPERV_CPUID, "one
cap to rule them all!") returning all Hyper-V CPUID feature leaves.

Using the existing KVM_GET_SUPPORTED_CPUID doesn't seem to be possible:
Hyper-V CPUID feature leaves intersect with KVM's (e.g. 0x40000000,
0x40000001) and we would probably confuse userspace in case we decide to
return these twice.

KVM_CAP_HYPERV_CPUID's number is interim: we're intended to drop
KVM_CAP_HYPERV_STIMER_DIRECT and use its number instead.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14 17:59:54 +01:00
..
alpha TTY/Serial fixes for 4.20-rc2 2018-11-10 13:32:14 -06:00
arc ARC: io.h: Implement reads{x}()/writes{x}() 2018-11-30 11:26:29 -08:00
arm Merge branch 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-12-06 16:45:36 -08:00
arm64 A few clk driver fixes this time: 2018-12-08 11:33:26 -08:00
c6x c6x changes for 4.20 2018-10-31 15:39:25 -07:00
csky csky: bugfix tlb_get_pgd error. 2018-12-03 10:49:11 +08:00
h8300 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
hexagon mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ia64 ia64: export node_distance function 2018-11-26 18:30:40 -08:00
m68k s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
microblaze microblaze: function_graph: Simplify with function_graph_enter() 2018-11-27 20:30:18 -05:00
mips kvm: introduce manual dirty log reprotect 2018-12-14 12:34:19 +01:00
nds32 nds32: function_graph: Simplify with function_graph_enter() 2018-11-27 20:30:43 -05:00
nios2 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
openrisc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
parisc Merge branch 'parisc-4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2018-12-04 09:10:39 -08:00
powerpc kvm: make KVM_CAP_ENABLE_CAP_VM architecture agnostic 2018-12-14 12:34:18 +01:00
riscv While rewriting the function graph tracer, I discovered a design flaw that 2018-11-30 09:32:34 -08:00
s390 kvm: make KVM_CAP_ENABLE_CAP_VM architecture agnostic 2018-12-14 12:34:18 +01:00
sh sh/function_graph: Simplify with function_graph_enter() 2018-11-27 20:31:39 -05:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2018-12-03 09:35:27 -08:00
um for-linus-20181109 2018-11-09 16:31:51 -06:00
unicore32 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
x86 x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID 2018-12-14 17:59:54 +01:00
xtensa xtensa: fix coprocessor part of ptrace_{get,set}xregs 2018-11-26 18:37:51 -08:00
.gitignore
Kconfig New gcc plugin: stackleak 2018-11-01 11:46:27 -07:00