linux/arch/powerpc
Haren Myneni ca77d48854 powerpc/pseries/vas: Implement getting capabilities from hypervisor
The hypervisor provides VAS capabilities for GZIP default and QoS
features. These capabilities gives information for the specific
features such as total number of credits available in LPAR,
maximum credits allowed per window, maximum credits allowed in
LPAR, whether usermode copy/paste is supported, and etc.

This patch adds the following:
- Retrieve all features that are provided by hypervisor using
  H_QUERY_VAS_CAPABILITIES hcall with 0 as feature type.
- Retrieve capabilities for the specific feature using the same
  hcall and the feature type (1 for QoS and 2 for default type).

Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/177c88608cb88f7b87d1c546103f18cec6c056b4.camel@linux.ibm.com
2021-06-20 21:58:57 +10:00
..
boot powerpc/ps3: Re-align DTB in image 2021-06-10 21:44:57 +10:00
configs powerpc/Makefile: Add ppc32/ppc64_randconfig targets 2021-05-23 20:51:35 +10:00
crypto crypto: powepc/sha1 - remove unneeded semicolon 2021-03-07 15:13:14 +11:00
include powerpc/vas: Define QoS credit flag to allocate window 2021-06-20 21:58:56 +10:00
kernel Merge branch 'topic/ppc-kvm' into next 2021-06-17 16:51:38 +10:00
kexec powerpc/kexec_file: Use current CPU info while setting up FDT 2021-05-04 22:26:57 +10:00
kvm Merge branch 'topic/ppc-kvm' into next 2021-06-17 16:51:38 +10:00
lib powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
math-emu powerpc/math: Fix missing __user qualifier for get_user() and other sparse warnings 2021-03-29 13:22:12 +11:00
mm Merge branch 'topic/ppc-kvm' into next 2021-06-17 16:51:38 +10:00
net powerpc/ebpf32: Use _Rx macros instead of __REG_Rx ones 2021-06-16 00:16:48 +10:00
perf powerpc: make stack walking KASAN-safe 2021-06-17 00:09:11 +10:00
platforms powerpc/pseries/vas: Implement getting capabilities from hypervisor 2021-06-20 21:58:57 +10:00
purgatory powerpc/kexec: Don't use .machine ppc64 in trampoline_64.S 2021-04-08 21:17:43 +10:00
sysdev Merge branch 'akpm' (patches from Andrew) 2021-04-30 14:38:01 -07:00
tools
xmon powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
Kbuild
Kconfig powerpc: Kconfig: disable CONFIG_COMPAT for clang < 12 2021-05-23 20:51:35 +10:00
Kconfig.debug powerpc: iommu: fix build when neither PCI or IBMVIO is set 2021-04-08 21:17:46 +10:00
Makefile powerpc/Makefile: Add ppc32/ppc64_randconfig targets 2021-05-23 20:51:35 +10:00
Makefile.postlink