mbox series

[v2,0/2] Fine grain sysregs allowed to trap for nested virtualization

Message ID 20230925162057.27548-1-miguel.luis@oracle.com (mailing list archive)
Headers show
Series Fine grain sysregs allowed to trap for nested virtualization | expand

Message

Miguel Luis Sept. 25, 2023, 4:20 p.m. UTC 
The current HCR_EL2 description includes _EL1 registers that are not affected
by NV. Let's exclude them from those ranges to implement a more fine grained
approach.

Changes v1 -> v2
 patch 1:
	fix indentation
 patch 2:
	improve commit message (Marc)
	fix indentation (Marc)
	follow kernel comment format (Marc)
	describe LRs in ranges (Marc)
	include AMEVCNTVOFF0<n>_EL2 and AMEVCNTVOFF1<n>_EL2
 patch 3:
	drop. Excluded IMPDEF range is trapped by HCR_EL2.TIDCP

v1: https://lore.kernel.org/kvmarm/20230913185209.32282-1-miguel.luis@oracle.com/

Miguel Luis (2):
  arm64: Add missing _EL12 encodings
  arm64/kvm: Fine grain _EL2 system registers list that affect nested
    virtualization

 arch/arm64/include/asm/sysreg.h | 11 +++++++++
 arch/arm64/kvm/emulate-nested.c | 44 ++++++++++++++++++++++++++++-----
 2 files changed, 49 insertions(+), 6 deletions(-)

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2.39.2