diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-08-28 11:03:51 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-08-28 14:32:06 +0300 |
| commit | b4dd4f6e3648dfd66576515f2222d885a9a765c0 (patch) | |
| tree | 5edeb1441d26fbf4c1d4c10b5b2d40b19f8f63f9 /MAINTAINERS | |
| parent | bac7b4e843232a3a49a042410cf743341eb0887e (diff) | |
| download | linux-b4dd4f6e3648dfd66576515f2222d885a9a765c0.tar.xz | |
x86/vmware: Add a header file for hypercall definitions
The new header is intended to be used by drivers using the backdoor.
Follow the KVM example using alternatives self-patching to choose
between vmcall, vmmcall and io instructions.
Also define two new CPU feature flags to indicate hypervisor support
for vmcall- and vmmcall instructions. The new XF86_FEATURE_VMW_VMMCALL
flag is needed because using XF86_FEATURE_VMMCALL might break QEMU/KVM
setups using the vmmouse driver. They rely on XF86_FEATURE_VMMCALL
on AMD to get the kvm_hypercall() right. But they do not yet implement
vmmcall for the VMware hypercall used by the vmmouse driver.
[ bp: reflow hypercall %edx usage explanation comment. ]
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Doug Covelli <dcovelli@vmware.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-graphics-maintainer@vmware.com
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Robert Hoo <robert.hu@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: virtualization@lists.linux-foundation.org
Cc: <pv-drivers@vmware.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190828080353.12658-3-thomas_os@shipmail.org
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 9cbcf167bdd0..47efc1b47d4c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17206,6 +17206,7 @@ M: "VMware, Inc." <pv-drivers@vmware.com> L: virtualization@lists.linux-foundation.org S: Supported F: arch/x86/kernel/cpu/vmware.c +F: arch/x86/include/asm/vmware.h VMWARE PVRDMA DRIVER M: Adit Ranadive <aditr@vmware.com> |