AuxXxilium/linux_dsm_epyc7002
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4619ac88b7
linux_dsm_epyc7002/arch
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Paul Mackerras 4619ac88b7 KVM: PPC: Book3S HV: Improve real-mode handling of external interrupts 
This streamlines our handling of external interrupts that come in
while we're in the guest.  First, when waking up a hardware thread
that was napping, we split off the "napping due to H_CEDE" case
earlier, and use the code that handles an external interrupt (0x500)
in the guest to handle that too.  Secondly, the code that handles
those external interrupts now checks if any other thread is exiting
to the host before bouncing an external interrupt to the guest, and
also checks that there is actually an external interrupt pending for
the guest before setting the LPCR MER bit (mediated external request).

This also makes sure that we clear the "ceded" flag when we handle a
wakeup from cede in real mode, and fixes a potential infinite loop
in kvmppc_run_vcpu() which can occur if we ever end up with the ceded
flag set but MSR[EE] off.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26 20:27:32 +02:00
..
alpha Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
arc ARC: split elf.h into uapi and export it for userspace 2013-02-27 20:00:26 +05:30
arm KVM: ARM: Fix kvm_vm_ioctl_irq_line 2013-04-16 18:16:10 -03:00
arm64 arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS 2013-03-19 16:19:19 +00:00
avr32 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
blackfin Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
c6x Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
cris Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
frv Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
h8300 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
ia64 KVM: IA64: Carry non-ia64 changes into ia64 2013-04-26 20:27:27 +02:00
m32r UAPI: fix endianness conditionals in M32R's asm/stat.h 2013-03-13 15:21:49 -07:00
m68k Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
metag metag: Inhibit NUMA balancing. 2013-03-04 10:29:19 +00:00
microblaze Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
mips Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
mn10300 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
openrisc openrisc: remove HAVE_VIRT_TO_BUS 2013-03-13 06:12:39 +01:00
parisc Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
powerpc KVM: PPC: Book3S HV: Improve real-mode handling of external interrupts 2013-04-26 20:27:32 +02:00
s390 KVM: s390: Enable KVM_CAP_NR_MEMSLOTS on s390 2013-04-02 16:14:53 +03:00
score Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
sh hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2013-03-19 14:47:11 -07:00
tile Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
um um: Use tty_port in SIGWINCH handler 2013-03-11 10:08:04 +01:00
unicore32 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
x86 KVM: Move irqfd resample cap handling to generic code 2013-04-26 20:27:19 +02:00
xtensa Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
.gitignore
Kconfig Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00