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| author | Andrew Scull <ascull@google.com> | 2020-09-15 11:46:42 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-09-15 18:39:04 +0100 |
| commit | 04e4caa8d355d19fd7d26734bd2b9e3b563bb22a (patch) | |
| tree | 1d34c6b73889f17c590e6870dda984c3e0cf7e06 /arch/arm64/kvm/Makefile | |
| parent | 054698316d87a13e4c0dc8f5ecdd77b12e5eb676 (diff) | |
| download | linux-04e4caa8d355d19fd7d26734bd2b9e3b563bb22a.tar.gz linux-04e4caa8d355d19fd7d26734bd2b9e3b563bb22a.tar.bz2 linux-04e4caa8d355d19fd7d26734bd2b9e3b563bb22a.zip | |
KVM: arm64: nVHE: Migrate hyp-init to SMCCC
To complete the transition to SMCCC, the hyp initialization is given a
function ID. This looks neater than comparing the hyp stub function IDs
to the page table physical address.
Some care is taken to only clobber x0-3 before the host context is saved
as only those registers can be clobbered accoring to SMCCC. Fortunately,
only a few acrobatics are needed. The possible new tpidr_el2 is moved to
the argument in x2 so that it can be stashed in tpidr_el2 early to free
up a scratch register. The page table configuration then makes use of
x0-2.
Signed-off-by: Andrew Scull <ascull@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200915104643.2543892-19-ascull@google.com
Diffstat (limited to 'arch/arm64/kvm/Makefile')
| -rw-r--r-- | arch/arm64/kvm/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile index 99977c1972cc..1504c81fbf5d 100644 --- a/arch/arm64/kvm/Makefile +++ b/arch/arm64/kvm/Makefile @@ -13,7 +13,7 @@ obj-$(CONFIG_KVM) += hyp/ kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \ $(KVM)/vfio.o $(KVM)/irqchip.o \ arm.o mmu.o mmio.o psci.o perf.o hypercalls.o pvtime.o \ - inject_fault.o regmap.o va_layout.o hyp.o handle_exit.o \ + inject_fault.o regmap.o va_layout.o handle_exit.o \ guest.o debug.o reset.o sys_regs.o \ vgic-sys-reg-v3.o fpsimd.o pmu.o \ aarch32.o arch_timer.o \ |