linux/arch/powerpc/kvm
Jordan Niethe dfcaacc8f9 KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long
The LPID register is 32 bits long. The host keeps the lpids for each
guest in an unsigned word struct kvm_arch. Currently, LPIDs are already
limited by mmu_lpid_bits and KVM_MAX_NESTED_GUESTS_SHIFT.

The nestedv2 API returns a 64 bit "Guest ID" to be used be the L1 host
for each L2 guest. This value is used as an lpid, e.g. it is the
parameter used by H_RPT_INVALIDATE. To minimize needless special casing
it makes sense to keep this "Guest ID" in struct kvm_arch::lpid.

This means that struct kvm_arch::lpid is too small so prepare for this
and make it an unsigned long. This is not a problem for the KVM-HV and
nestedv1 cases as their lpid values are already limited to valid ranges
so in those contexts the lpid can be used as an unsigned word safely as
needed.

In the PAPR, the H_RPT_INVALIDATE pid/lpid parameter is already
specified as an unsigned long so change pseries_rpt_invalidate() to
match that.  Update the callers of pseries_rpt_invalidate() to also take
an unsigned long if they take an lpid value.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230914030600.16993-10-jniethe5@gmail.com
2023-09-14 22:04:24 +10:00
..
book3s_32_mmu_host.c powerpc/32s: move CTX_TO_VSID() into mmu-hash.h 2021-06-17 00:09:08 +10:00
book3s_32_mmu.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
book3s_32_sr.S KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context() 2022-05-11 23:03:16 +10:00
book3s_64_entry.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
book3s_64_mmu_host.c KVM: Rename mmu_notifier_* to mmu_invalidate_* 2022-08-19 04:05:41 -04:00
book3s_64_mmu_hv.c KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long 2023-09-14 22:04:24 +10:00
book3s_64_mmu_radix.c KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long 2023-09-14 22:04:24 +10:00
book3s_64_mmu.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
book3s_64_slb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_vio.c KVM: PPC: Always use the GPR accessors 2023-09-14 22:04:23 +10:00
book3s_emulate.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
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: Introduce low level MSR accessor 2023-09-14 22:04:24 +10:00
book3s_hv_hmi.c KVM: PPC: Book3S HV P9: Remove subcore HMI handling 2021-11-24 21:09:03 +11:00
book3s_hv_interrupts.S powerpc: Fix objtool unannotated intra-function call warnings 2022-11-15 20:11:47 +11:00
book3s_hv_nested.c KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long 2023-09-14 22:04:24 +10:00
book3s_hv_p9_entry.c KVM: PPC: Use accessors for VCPU registers 2023-09-14 22:04:24 +10:00
book3s_hv_p9_perf.c powerpc/kvm: Remove comment related to moving PMU code to perf subsystem 2022-07-20 22:28:31 +10:00
book3s_hv_ras.c KVM: PPC: Use accessors for VCORE registers 2023-09-14 22:04:24 +10:00
book3s_hv_rm_mmu.c KVM: PPC: Always use the GPR accessors 2023-09-14 22:04:23 +10:00
book3s_hv_rm_xics.c KVM: PPC: Always use the GPR accessors 2023-09-14 22:04:23 +10:00
book3s_hv_rmhandlers.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
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 Nested: Fix TM softpatch HFAC interrupt emulation 2021-08-25 16:37:17 +10:00
book3s_hv_uvmem.c KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long 2023-09-14 22:04:24 +10:00
book3s_hv.c KVM: PPC: Book3S HV: Introduce low level MSR accessor 2023-09-14 22:04:24 +10:00
book3s_hv.h KVM: PPC: Book3S HV: Introduce low level MSR accessor 2023-09-14 22:04:24 +10:00
book3s_interrupts.S powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} 2022-05-19 23:11:29 +10:00
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 KVM: PPC: Make kvmppc_get_last_inst() produce a ppc_inst_t 2023-04-03 15:45:41 +10:00
book3s_pr_papr.c KVM: remove KVM_REQ_UNHALT 2022-09-26 12:37:21 -04:00
book3s_pr.c s390: 2023-05-01 12:06:20 -07:00
book3s_rmhandlers.S KVM: PPC: Enable prefixed instructions for HV KVM and disable for PR KVM 2023-04-03 15:45:59 +10:00
book3s_rtas.c KVM: Add helpers to wrap vcpu->srcu_idx and yell if it's abused 2022-04-21 13:16:11 -04:00
book3s_segment.S KVM: PPC: Book3S 64: move bad_host_intr check to HV handler 2021-06-10 22:12:12 +10:00
book3s_xics.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
book3s_xics.h KVM: PPC: Book3s: Fix warning about xics_rm_h_xirr_x 2022-06-24 12:58:33 +10:00
book3s_xive_native.c mm: replace vma->vm_flags direct modifications with modifier calls 2023-02-09 16:51:39 -08:00
book3s_xive.c KVM: PPC: Book3s HV: Hold LPIDs in an unsigned long 2023-09-14 22:04:24 +10:00
book3s_xive.h powerpc/xive: remove unused parameter 2022-11-24 23:12:18 +11:00
book3s.c KVM: PPC: Use accessors for VCPU registers 2023-09-14 22:04:24 +10:00
book3s.h KVM: PPC: Book3S PR: Declare kvmppc_handle_exit_pr() 2021-08-20 22:17:38 +10:00
booke_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
booke_interrupts.S powerpc: Remove CONFIG_FSL_BOOKE 2022-09-26 22:47:37 +10:00
booke.c KVM: PPC: Fetch prefixed instructions from the guest 2023-04-03 15:45:50 +10:00
booke.h KVM: PPC: BookE: Fix W=1 warnings 2023-04-03 14:54:20 +10:00
bookehv_interrupts.S KVM: PPC: Fetch prefixed instructions from the guest 2023-04-03 15:45:50 +10:00
e500_emulate.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
e500_mmu_host.c KVM: PPC: Fetch prefixed instructions from the guest 2023-04-03 15:45:50 +10:00
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: Drop kvm_arch_check_processor_compat() hook 2022-12-29 15:41:28 -05:00
e500.h powerpc: Remove CONFIG_PPC_BOOK3E_MMU 2022-09-26 23:00:14 +10:00
e500mc.c powerpc/inst: add PPC_TLBILX_LPID 2023-08-16 23:54:48 +10:00
emulate_loadstore.c KVM: PPC: Introduce FPR/VR accessor functions 2023-09-14 22:04:23 +10:00
emulate.c KVM: PPC: Fetch prefixed instructions from the guest 2023-04-03 15:45:50 +10:00
fpu.S powerpc/32: Fix objtool unannotated intra-function call warnings 2022-11-18 19:00:06 +11:00
guest-state-buffer.c KVM: PPC: Add helper library for Guest State Buffers 2023-09-14 22:04:24 +10:00
Kconfig kvm: Remove "select SRCU" 2023-04-05 13:47:42 +00:00
Makefile KVM: PPC: Add helper library for Guest State Buffers 2023-09-14 22:04:24 +10:00
mpic.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
powerpc.c KVM: PPC: Use accessors for VCPU registers 2023-09-14 22:04:24 +10:00
test-guest-state-buffer.c KVM: PPC: Add helper library for Guest State Buffers 2023-09-14 22:04:24 +10:00
timing.c KVM: PPC: Merge powerpc's debugfs entry content into generic entry 2022-02-02 20:30:26 +11:00
timing.h KVM: PPC: Merge powerpc's debugfs entry content into generic entry 2022-02-02 20:30:26 +11:00
tm.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
trace_book3s.h
trace_booke.h KVM: Move arm64's MMU notifier trace events to generic code 2021-04-17 08:30:56 -04:00
trace_hv.h KVM: PPC: Book3S HV: tracing: Add missing hcall names 2022-06-29 19:21:29 +10:00
trace_pr.h
trace.h