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377f02d487
linux/arch/powerpc/kvm
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Laurent Dufour 377f02d487 KVM: PPC: Book3S HV: H_SVM_INIT_START must call UV_RETURN 
When the call to UV_REGISTER_MEM_SLOT is failing, for instance because
there is not enough free secured memory, the Hypervisor (HV) has to call
UV_RETURN to report the error to the Ultravisor (UV). Then the UV will call
H_SVM_INIT_ABORT to abort the securing phase and go back to the calling VM.

If the kvm->arch.secure_guest is not set, in the return path rfid is called
but there is no valid context to get back to the SVM since the Hcall has
been routed by the Ultravisor.

Move the setting of kvm->arch.secure_guest earlier in
kvmppc_h_svm_init_start() so in the return path, UV_RETURN will be called
instead of rfid.

Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Tested-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2020-03-24 13:08:51 +11:00
..
book3s_32_mmu_host.c KVM: PPC: Book3S PR: Move kvmppc_mmu_init() into PR KVM 2020-03-19 16:39:52 +11:00
book3s_32_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_32_sr.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_mmu_host.c KVM: PPC: Book3S PR: Move kvmppc_mmu_init() into PR KVM 2020-03-19 16:39:52 +11:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Use __gfn_to_pfn_memslot in HPT page fault handler 2020-03-19 16:39:52 +11:00
book3s_64_mmu_radix.c KVM: PPC: Book3S HV: Use RADIX_PTE_INDEX_SIZE in Radix MMU code 2020-03-19 16:39:52 +11:00
book3s_64_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_64_slb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_vio_hv.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
book3s_64_vio.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
book3s_emulate.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_exports.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_hv_builtin.c KVM: PPC: Book3S HV: Implement LPCR[AIL]=3 mode for injected interrupts 2019-10-22 16:29:02 +11:00
book3s_hv_hmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
book3s_hv_interrupts.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_hv_nested.c KVM: PPC: Book3S: Define and use SRR1_MSR_BITS 2019-10-22 16:29:02 +11:00
book3s_hv_ras.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_hv_rm_mmu.c powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9 2019-09-24 20:58:55 +10:00
book3s_hv_rm_xics.c KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag 2019-09-24 12:46:26 +10:00
book3s_hv_rm_xive.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
book3s_hv_rmhandlers.S powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2 2020-01-26 00:11:37 +11:00
book3s_hv_tm_builtin.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_tm.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_uvmem.c KVM: PPC: Book3S HV: H_SVM_INIT_START must call UV_RETURN 2020-03-24 13:08:51 +11:00
book3s_hv.c KVM: PPC: Book3S HV: Check caller of H_SVM_* Hcalls 2020-03-24 13:08:51 +11:00
book3s_interrupts.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_mmu_hpte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_paired_singles.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_pr_papr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_pr.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
book3s_rmhandlers.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_rtas.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_segment.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_xics.c scripts/spelling.txt: drop "sepc" from the misspelling list 2019-07-12 11:05:41 -07:00
book3s_xics.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_xive_native.c KVM: Use vcpu-specific gva->hva translation when querying host page size 2020-01-27 20:00:02 +01:00
book3s_xive_template.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_xive.c KVM: PPC: Book3S HV: XIVE: Fix typo in comment 2020-01-23 21:31:23 +11:00
book3s_xive.h KVM: PPC: Book3S HV: XIVE: Make VP block size configurable 2019-10-22 16:29:02 +11:00
book3s.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
book3s.h KVM: PPC: Book3S PR: Move kvmppc_mmu_init() into PR KVM 2020-03-19 16:39:52 +11:00
booke_emulate.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
booke_interrupts.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
booke.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
booke.h KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
bookehv_interrupts.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
e500_emulate.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500_mmu_host.c KVM: PPC: E500: Replace current->mm by kvm->mm 2019-10-22 16:29:01 +11:00
e500_mmu_host.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500_mmu.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500mc.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
emulate_loadstore.c KVM: PPC: Remove set but not used variable 'ra', 'rs', 'rt' 2020-01-17 15:08:28 +11:00
emulate.c Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next 2019-08-23 14:08:04 +10:00
fpu.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig powerpc/Kconfig: Clean up formatting 2019-07-04 16:55:10 +10:00
Makefile KVM: PPC: Book3S HV: Support for running secure guests 2019-11-28 16:30:02 +11:00
mpic.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
powerpc.c KVM: PPC: Book3S PR: Fix kernel crash with PR KVM 2020-03-19 16:39:52 +11:00
timing.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
timing.h KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
tm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
trace_book3s.h KVM: PPC: Book3S: Simplify external interrupt handling 2018-10-09 16:04:27 +11:00
trace_booke.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00
trace_hv.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00
trace_pr.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00
trace.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00