linux/arch/x86/entry
Linus Torvalds d04f7de0a5 - Differentiate the type of exception the #VC handler raises depending
on code executed in the guest and handle the case where failure to
 get the RIP would result in a #GP, as it should, instead of in a #PF
 
 - Disable interrupts while the per-CPU GHCB is held
 
 - Split the #VC handler depending on where the #VC exception has
 happened and therefore provide for precise context tracking like the
 rest of the exception handlers deal with noinstr regions now
 
 - Add defines for the GHCB version 2 protocol so that further shared
 development with KVM can happen without merge conflicts
 
 - The usual small cleanups
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmDZij8ACgkQEsHwGGHe
 VUpwIQ/8CzFbGm2k2RdmO0H/VPwfF1HFSWpM9YFGSs++yOqfiyCFbyIcTcRbK4IO
 +BUIRoHSgCWPb+5pJli1Wf0J/sIdYr9D4MDWt1oRQG6e/4NE2SL3EOnYJWW5VtOT
 u1AVk01ooPOFDKIoh4OIZ7tCKAeNWBv+oe5dmP46spiEZbHHCzHIEaBuOQRzvX9C
 jSKulDHjA4iaNl/BQMF7dJL1+aPWj2NXjSj86fhMAa+m5MspDXbIaM5wMZfPzc1k
 Rj/m89JThp+mFwik46o/7g/5Q8SYtTE+Hqi1TX/65/dbyizLqbH5W3g0zwrD8TYf
 B7kHguqkoE1j1avLwOYK1yJB8ZTjtf+OXjUAR4UPzxkG7Xhelu5Qb7RD/WCJ3YqO
 KEFIFq+hsiAqvb6RkmX0aVecIJ49aqGX+onsMpLWq9pz2R4BRcH7jo81TIBcosg5
 2Kfx2aPcMec7u7RMBHqwiaC4Adp7/vmHhukawfI8xCWLd7wEjvAMP3eeePxR+C0l
 SSnn0O9COj8pctvq4eOGJAUXzPa4YtsaX+kILBs+hUdQXmQGVSxyTpakyhhUpGQ8
 YyblbHybS8JeYdGqPVS/tn0Rc2DqOSQJetjmXAGhlkEkkGY8i1Ddwe0MaamJozol
 g/wHNYcok/OQWglvVThv6EAY2pTSeWelmjUkZi1dnkYNH1VUxxE=
 =iyX+
 -----END PGP SIGNATURE-----

Merge tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV updates from Borislav Petkov:

 - Differentiate the type of exception the #VC handler raises depending
   on code executed in the guest and handle the case where failure to
   get the RIP would result in a #GP, as it should, instead of in a #PF

 - Disable interrupts while the per-CPU GHCB is held

 - Split the #VC handler depending on where the #VC exception has
   happened and therefore provide for precise context tracking like the
   rest of the exception handlers deal with noinstr regions now

 - Add defines for the GHCB version 2 protocol so that further shared
   development with KVM can happen without merge conflicts

 - The usual small cleanups

* tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Use "SEV: " prefix for messages from sev.c
  x86/sev: Add defines for GHCB version 2 MSR protocol requests
  x86/sev: Split up runtime #VC handler for correct state tracking
  x86/sev: Make sure IRQs are disabled while GHCB is active
  x86/sev: Propagate #GP if getting linear instruction address failed
  x86/insn: Extend error reporting from insn_fetch_from_user[_inatomic]()
  x86/insn-eval: Make 0 a valid RIP for insn_get_effective_ip()
  x86/sev: Fix error message in runtime #VC handler
2021-06-28 11:29:12 -07:00
..
syscalls quota: Disable quotactl_path syscall 2021-05-17 14:39:56 +02:00
vdso A single fix for the x86 VDSO build infrastructure to address a compiler 2021-04-26 10:17:34 -07:00
vsyscall x86/mm: Convert mmu context ia32_compat into a proper flags field 2020-10-26 13:46:47 +01:00
calling.h x86/entry/64: Do not include inst.h in calling.h 2020-09-04 10:59:21 +02:00
common.c x86/xen: Fix noinstr fail in xen_pv_evtchn_do_upcall() 2021-06-22 13:56:42 +02:00
entry_32.S - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
entry_64_compat.S x86/sev-es: Introduce ip_within_syscall_gap() helper 2021-03-08 14:22:17 +01:00
entry_64.S x86/sev: Split up runtime #VC handler for correct state tracking 2021-06-21 16:01:05 +02:00
Makefile x86/entry: Actually disable stack protector 2020-07-19 13:07:10 +02:00
syscall_32.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_64.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_x32.c mm: remove compat_process_vm_{readv,writev} 2020-10-03 00:02:15 -04:00
thunk_32.S x86/entry: Remove unused THUNKs 2020-08-26 12:41:54 +02:00
thunk_64.S x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument 2021-01-19 11:06:14 +01:00