Searched hist:"267980 ea" (Results 1 – 4 of 4) sorted by relevance
/openbmc/linux/arch/powerpc/kvm/ |
H A D | book3s_hv.h | 267980ea Wed Sep 13 22:05:56 CDT 2023 Jordan Niethe <jniethe5@gmail.com> KVM: PPC: Book3S HV: Introduce low level MSR accessor
[ Upstream commit 6de2e837babb411cfb3cdb570581c3a65576ddaf ]
kvmppc_get_msr() and kvmppc_set_msr_fast() serve as accessors for the MSR. However because the MSR is kept in the shared regs they include a conditional check for kvmppc_shared_big_endian() and endian conversion.
Within the Book3S HV specific code there are direct reads and writes of shregs::msr. In preparation for Nested APIv2 these accesses need to be replaced with accessor functions so it is possible to extend their behavior. However, using the kvmppc_get_msr() and kvmppc_set_msr_fast() functions is undesirable because it would introduce a conditional branch and endian conversion that is not currently present.
kvmppc_set_msr_hv() already exists, it is used for the kvmppc_ops::set_msr callback.
Introduce a low level accessor __kvmppc_{s,g}et_msr_hv() that simply gets and sets shregs::msr. This will be extend for Nested APIv2 support.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230914030600.16993-8-jniethe5@gmail.com Stable-dep-of: ecd10702baae ("KVM: PPC: Book3S HV: Handle pending exceptions on guest entry with MSR_EE") Signed-off-by: Sasha Levin <sashal@kernel.org>
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H A D | book3s_hv_builtin.c | 267980ea Wed Sep 13 22:05:56 CDT 2023 Jordan Niethe <jniethe5@gmail.com> KVM: PPC: Book3S HV: Introduce low level MSR accessor
[ Upstream commit 6de2e837babb411cfb3cdb570581c3a65576ddaf ]
kvmppc_get_msr() and kvmppc_set_msr_fast() serve as accessors for the MSR. However because the MSR is kept in the shared regs they include a conditional check for kvmppc_shared_big_endian() and endian conversion.
Within the Book3S HV specific code there are direct reads and writes of shregs::msr. In preparation for Nested APIv2 these accesses need to be replaced with accessor functions so it is possible to extend their behavior. However, using the kvmppc_get_msr() and kvmppc_set_msr_fast() functions is undesirable because it would introduce a conditional branch and endian conversion that is not currently present.
kvmppc_set_msr_hv() already exists, it is used for the kvmppc_ops::set_msr callback.
Introduce a low level accessor __kvmppc_{s,g}et_msr_hv() that simply gets and sets shregs::msr. This will be extend for Nested APIv2 support.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230914030600.16993-8-jniethe5@gmail.com Stable-dep-of: ecd10702baae ("KVM: PPC: Book3S HV: Handle pending exceptions on guest entry with MSR_EE") Signed-off-by: Sasha Levin <sashal@kernel.org>
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H A D | book3s_64_mmu_hv.c | 267980ea Wed Sep 13 22:05:56 CDT 2023 Jordan Niethe <jniethe5@gmail.com> KVM: PPC: Book3S HV: Introduce low level MSR accessor
[ Upstream commit 6de2e837babb411cfb3cdb570581c3a65576ddaf ]
kvmppc_get_msr() and kvmppc_set_msr_fast() serve as accessors for the MSR. However because the MSR is kept in the shared regs they include a conditional check for kvmppc_shared_big_endian() and endian conversion.
Within the Book3S HV specific code there are direct reads and writes of shregs::msr. In preparation for Nested APIv2 these accesses need to be replaced with accessor functions so it is possible to extend their behavior. However, using the kvmppc_get_msr() and kvmppc_set_msr_fast() functions is undesirable because it would introduce a conditional branch and endian conversion that is not currently present.
kvmppc_set_msr_hv() already exists, it is used for the kvmppc_ops::set_msr callback.
Introduce a low level accessor __kvmppc_{s,g}et_msr_hv() that simply gets and sets shregs::msr. This will be extend for Nested APIv2 support.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230914030600.16993-8-jniethe5@gmail.com Stable-dep-of: ecd10702baae ("KVM: PPC: Book3S HV: Handle pending exceptions on guest entry with MSR_EE") Signed-off-by: Sasha Levin <sashal@kernel.org>
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H A D | book3s_hv.c | 267980ea Wed Sep 13 22:05:56 CDT 2023 Jordan Niethe <jniethe5@gmail.com> KVM: PPC: Book3S HV: Introduce low level MSR accessor
[ Upstream commit 6de2e837babb411cfb3cdb570581c3a65576ddaf ]
kvmppc_get_msr() and kvmppc_set_msr_fast() serve as accessors for the MSR. However because the MSR is kept in the shared regs they include a conditional check for kvmppc_shared_big_endian() and endian conversion.
Within the Book3S HV specific code there are direct reads and writes of shregs::msr. In preparation for Nested APIv2 these accesses need to be replaced with accessor functions so it is possible to extend their behavior. However, using the kvmppc_get_msr() and kvmppc_set_msr_fast() functions is undesirable because it would introduce a conditional branch and endian conversion that is not currently present.
kvmppc_set_msr_hv() already exists, it is used for the kvmppc_ops::set_msr callback.
Introduce a low level accessor __kvmppc_{s,g}et_msr_hv() that simply gets and sets shregs::msr. This will be extend for Nested APIv2 support.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230914030600.16993-8-jniethe5@gmail.com Stable-dep-of: ecd10702baae ("KVM: PPC: Book3S HV: Handle pending exceptions on guest entry with MSR_EE") Signed-off-by: Sasha Levin <sashal@kernel.org>
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