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| author | David Brazdil <dbrazdil@google.com> | 2020-06-25 14:14:11 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-05 18:38:08 +0100 |
| commit | b877e9849d41e7d2100d2933e0a3971d0ddec011 (patch) | |
| tree | 2913a50fcd66c0602d66bcb5c20995b77abc181a /arch/arm64/kvm/hyp | |
| parent | f50b6f6ae131b6ee7d5dd738961eda0c00b7f027 (diff) | |
| download | linux-stable-b877e9849d41e7d2100d2933e0a3971d0ddec011.tar.gz linux-stable-b877e9849d41e7d2100d2933e0a3971d0ddec011.tar.bz2 linux-stable-b877e9849d41e7d2100d2933e0a3971d0ddec011.zip | |
KVM: arm64: Build hyp-entry.S separately for VHE/nVHE
hyp-entry.S contains implementation of KVM hyp vectors. This code is mostly
shared between VHE/nVHE, therefore compile it under both VHE and nVHE build
rules. nVHE-specific host HVC handler is hidden behind __KVM_NVHE_HYPERVISOR__.
Adjust code which selects which KVM hyp vecs to install to choose the correct
VHE/nVHE symbol.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200625131420.71444-7-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kvm/hyp')
| -rw-r--r-- | arch/arm64/kvm/hyp/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/hyp-entry.S | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/Makefile | 2 |
4 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile index 9c5dfe6ff80b..8b0cf85080b5 100644 --- a/arch/arm64/kvm/hyp/Makefile +++ b/arch/arm64/kvm/hyp/Makefile @@ -10,11 +10,11 @@ subdir-ccflags-y := -I$(incdir) \ -DDISABLE_BRANCH_PROFILING \ $(DISABLE_STACKLEAK_PLUGIN) -obj-$(CONFIG_KVM) += hyp.o nvhe/ +obj-$(CONFIG_KVM) += hyp.o vhe/ nvhe/ obj-$(CONFIG_KVM_INDIRECT_VECTORS) += smccc_wa.o hyp-y := vgic-v3-sr.o timer-sr.o aarch32.o vgic-v2-cpuif-proxy.o sysreg-sr.o \ - debug-sr.o entry.o switch.o fpsimd.o tlb.o hyp-entry.o + debug-sr.o entry.o switch.o fpsimd.o tlb.o # KVM code is run at a different exception code with a different map, so # compiler instrumentation that inserts callbacks or checks into the code may diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index d362fad97cc8..7e3c72fa634f 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -40,6 +40,7 @@ el1_sync: // Guest trapped into EL2 ccmp x0, #ESR_ELx_EC_HVC32, #4, ne b.ne el1_trap +#ifdef __KVM_NVHE_HYPERVISOR__ mrs x1, vttbr_el2 // If vttbr is valid, the guest cbnz x1, el1_hvc_guest // called HVC @@ -74,6 +75,7 @@ el1_sync: // Guest trapped into EL2 eret sb +#endif /* __KVM_NVHE_HYPERVISOR__ */ el1_hvc_guest: /* diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index 955f4188e00f..79eb8eed96a1 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -6,7 +6,7 @@ asflags-y := -D__KVM_NVHE_HYPERVISOR__ ccflags-y := -D__KVM_NVHE_HYPERVISOR__ -obj-y := +obj-y := ../hyp-entry.o obj-y := $(patsubst %.o,%.hyp.o,$(obj-y)) extra-y := $(patsubst %.hyp.o,%.hyp.tmp.o,$(obj-y)) diff --git a/arch/arm64/kvm/hyp/vhe/Makefile b/arch/arm64/kvm/hyp/vhe/Makefile index e04375546081..323029e02b4e 100644 --- a/arch/arm64/kvm/hyp/vhe/Makefile +++ b/arch/arm64/kvm/hyp/vhe/Makefile @@ -6,7 +6,7 @@ asflags-y := -D__KVM_VHE_HYPERVISOR__ ccflags-y := -D__KVM_VHE_HYPERVISOR__ -obj-y := +obj-y := ../hyp-entry.o # KVM code is run at a different exception code with a different map, so # compiler instrumentation that inserts callbacks or checks into the code may |