MIPS: introduce Kconfig for MIPS VZ
Since MIPS/KVM only supports hardware virtualization using MIPS VZ,
do not enable KVM blindly. Use a new Kconfig symbol CPU_SUPPORTS_VZ
and do not enable it for R2 processors.
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 797ae59..3eb3239 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1250,6 +1250,7 @@
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_HUGEPAGES
select CPU_SUPPORTS_MSA
+ select CPU_SUPPORTS_VZ
select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
select CPU_MIPSR2_IRQ_VI
select DMA_NONCOHERENT
@@ -1389,6 +1390,7 @@
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_MSA
+ select CPU_SUPPORTS_VZ
select HAVE_KVM
select MIPS_O32_FP64_SUPPORT
help
@@ -1405,6 +1407,7 @@
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_MSA
+ select CPU_SUPPORTS_VZ
select HAVE_KVM
select MIPS_O32_FP64_SUPPORT
help
@@ -1459,6 +1462,7 @@
select CPU_SUPPORTS_HUGEPAGES
select CPU_SUPPORTS_MSA
select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
+ select CPU_SUPPORTS_VZ
select HAVE_KVM
help
Choose this option to build a kernel for release 5 or later of the
@@ -1477,6 +1481,7 @@
select CPU_SUPPORTS_HUGEPAGES
select CPU_SUPPORTS_MSA
select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
+ select CPU_SUPPORTS_VZ
select HAVE_KVM
help
Choose this option to build a kernel for release 6 or later of the
@@ -1492,6 +1497,7 @@
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_MSA
select CPU_SUPPORTS_CPUFREQ
+ select CPU_SUPPORTS_VZ
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select HAVE_KVM
@@ -1614,6 +1620,7 @@
select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select MIPS_L1_CACHE_SHIFT_7
+ select CPU_SUPPORTS_VZ
select HAVE_KVM
help
The Cavium Octeon processor is a highly integrated chip containing
@@ -1969,6 +1976,8 @@
config CPU_SUPPORTS_HUGEPAGES
bool
depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
+config CPU_SUPPORTS_VZ
+ bool
config MIPS_PGD_C0_CONTEXT
bool
depends on 64BIT
