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* Do a single prime in vmenter.. multiple passes added inside the macroHEADmasterLouis Burda2023-02-091-3/+1
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* Add counter for L1 misses in guestLouis Burda2023-02-072-3/+13
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* Dont treat shadow-mmu not writable but pte writable as an errorLouis Burda2023-02-071-3/+3
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* fixup! Save registers to xmm to lower baseline counts and avoid timing ↵Louis Burda2023-02-061-0/+4
| | | | | | issues with apic_oneshot The cpu register state is cleared after vmrun in sev-es, as such we need to reload cpc_ds for probing and cpc_prime_probe. Since the access locations are constant, these extra loads will simply end up in the baseline. Additionally, the apic precision is not affected as the acceses happen *after* vmrun
* Set interrupt flag after prime / clear before probe in vmenterLouis Burda2023-02-061-13/+8
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* Save registers to xmm to lower baseline counts and avoid timing issues with ↵Louis Burda2023-02-061-46/+45
| | | | | | apic_oneshot Swapping general-purpose registers with xmm registers should be constant-time, while writing and reading from memory after prime will cause cache misses with varying servicing time. This added uncertainty decreases stepping accuracy with apic.
* Only do vmmcall in aes_generic if dummy key detectedLouis Burda2023-02-061-3/+0
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* Use retired instructions in userspace for TRACK_STEPSLouis Burda2023-02-062-12/+47
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* Fix stepping inconsistency by moving oneshot after primeLouis Burda2023-02-063-20/+50
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* Simplify target gfn stepping by tracking a single pageLouis Burda2023-02-031-18/+3
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* Properly implement target gfn steppingLouis Burda2023-02-034-93/+72
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* Fix page tracking without singlestep resolveLouis Burda2023-02-022-26/+28
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* Debug single-stepping on page-boundaries in page_stepLouis Burda2023-02-022-46/+46
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* Handle instruction loads on page boundaries more cleanlyLouis Burda2023-02-023-26/+70
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* Merge branch 'sev-snp-iommu-avic_5.19-rc6_v4' of github.com:AMDESE/linuxLouis Burda2023-01-316-18/+0
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| * Revert "KVM: SEV: add cache flush to solve SEV cache incoherency issues"Ashish Kalra2022-09-286-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 683412ccf61294d727ead4a73d97397396e69a6b. Need to revert this commit to fix soft-lockup and RCU stall issues on both SNP host and guest. The wbinvd_on_all_cpus() invoked from the MMU invalidation notifiers as part of this patch adds a lot of additional overhead and latencies on SNP host kernel especially with large physical count cpus during NUMA autobalancing and host RMP page fault handling. Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
* | Combine TRACK_STEPS_* modesLouis Burda2023-01-303-81/+46
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* | Untrack cachepc symlinkLouis Burda2023-01-302-1/+1
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* | Rework how apic timer is adjusted and merge CPC_TRACK_PAGES_RESOLVELouis Burda2023-01-272-47/+17
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* | Consistent use of cpc shorthand instead of cachepcLouis Burda2023-01-279-136/+136
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* | Add CPC_TRACK_STEPS and make apic reset more robustLouis Burda2023-01-272-37/+67
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* | TRACK_STEPS_SIGNALLED: Only prime+probe when we are stepping on target gfnLouis Burda2023-01-274-42/+120
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* | Add signalled stepping track modeLouis Burda2023-01-265-30/+145
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* | Use prime returned address for probeLouis Burda2023-01-251-4/+1
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* | Move vm pause out of irq-masked sectionLouis Burda2023-01-251-5/+10
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* | Remove cachepc objects from kvm-amd moduleLouis Burda2023-01-251-2/+1
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* | Ensure oneshot is disabled if not single/long-step before runLouis Burda2023-01-241-0/+2
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* | Page tracking support (without speculation)Louis Burda2023-01-242-115/+88
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* | Enable single stepping non sev-es guests and long KVM_RUNs to prevent interruptsLouis Burda2023-01-232-26/+35
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* | Implement prime+probe without vcall, move vm pausingLouis Burda2023-01-213-67/+78
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* | More debug info and wbinvd for accurate vmsaLouis Burda2023-01-192-44/+75
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* | Add more debug printsLouis Burda2023-01-174-30/+48
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* | Add debug print to vmmcall exitLouis Burda2023-01-112-3/+7
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* | Minimize diff to 0aaa1e5 and small restructureLouis Burda2023-01-118-100/+42
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* | Add accidentally removed mmu.o and declare cachepc_tdp_protect_gfnLouis Burda2023-01-103-3/+5
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* | Stash fixupsLouis Burda2023-01-106-28/+161
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* | Fix decrypt_rip for SEV SNPLouis Burda2023-01-091-33/+36
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* | re-enable single step when full trackingLouis Burda2023-01-051-1/+5
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* | Fix page fault handlingLouis Burda2022-12-194-43/+134
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* | Remove old warningsLouis Burda2022-12-111-5/+0
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* | Revert unnecessary diffs and small tdp_mmu fixLouis Burda2022-12-116-81/+12
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* | Add support for only exec based stepping (unstable)Louis Burda2022-12-114-10/+53
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* | Dont unmap vmsa from direct mapLouis Burda2022-12-103-113/+94
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* | stashLouis Burda2022-12-069-55/+326
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* | Reset pmc counter and update baselineLouis Burda2022-10-271-2/+8
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* | Refactor more code out into repo filesLouis Burda2022-10-208-12/+16
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* | Move sevstep/kvm into sevstep/sevstepLouis Burda2022-10-052-4/+4
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* | Move kvm_page_track_mode to sevstep uapiLouis Burda2022-10-051-8/+1
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* | Remove ccp symver targetLouis Burda2022-10-051-2/+0
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* | Refactor out sevstep into cachepc repositoryLouis Burda2022-10-0512-1262/+41
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