diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2019-06-22 15:15:18 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-07-02 12:24:42 +0200 |
| commit | c0c6cd156c1239cd199a3bc083f1924518dd02a6 (patch) | |
| tree | ed200b8cae48d47685e9a809b1fb77b8808123ed | |
| parent | powerpc/64s/exception: merge KVM handler and skip variants (diff) | |
| download | linux-c0c6cd156c1239cd199a3bc083f1924518dd02a6.tar.xz linux-c0c6cd156c1239cd199a3bc083f1924518dd02a6.zip | |
powerpc/64s/exception: KVM handler can set the HSRR trap bit
Move the KVM trap HSRR bit into the KVM handler, which can be
conditionally applied when hsrr parameter is set.
No generated code change.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/exception-64s.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/head-64.h | 7 |
2 files changed, 7 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index d2a5bbeb727d..a7b514574b80 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -454,7 +454,12 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) ld r10,\area+EX_R10(r13) std r12,HSTATE_SCRATCH0(r13) sldi r12,r9,32 + /* HSRR variants have the 0x2 bit added to their trap number */ + .if \hsrr + ori r12,r12,(\n + 0x2) + .else ori r12,r12,(\n) + .endif /* This reloads r9 before branching to kvmppc_interrupt */ __BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt) diff --git a/arch/powerpc/include/asm/head-64.h b/arch/powerpc/include/asm/head-64.h index 518d9758b41e..bdd67a26e959 100644 --- a/arch/powerpc/include/asm/head-64.h +++ b/arch/powerpc/include/asm/head-64.h @@ -393,16 +393,13 @@ name: TRAMP_KVM_BEGIN(do_kvm_##n); \ KVM_HANDLER area, EXC_STD, n, 1 -/* - * HV variant exceptions get the 0x2 bit added to their trap number. - */ #define TRAMP_KVM_HV(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER area, EXC_HV, n + 0x2, 0 + KVM_HANDLER area, EXC_HV, n, 0 #define TRAMP_KVM_HV_SKIP(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER area, EXC_HV, n + 0x2, 1 + KVM_HANDLER area, EXC_HV, n, 1 #define EXC_COMMON(name, realvec, hdlr) \ EXC_COMMON_BEGIN(name); \ |