1b99e029c5
When running guests under a hypervisor, the hypervisor obviously needs to be protected from guest accesses even if those are in what the guest considers real mode (translation off). The POWER hardware provides two ways of doing that: The old way has guest real mode accesses simply offset and bounds checked into host addresses. It works, but requires that a significant chunk of the guest's memory - the RMA - be physically contiguous in the host, which is pretty inconvenient. The new way, known as VRMA, has guest real mode accesses translated in roughly the normal way but with some special parameters. In POWER7 and POWER8 the LPCR[VPM0] bit selected between the two modes, but in POWER9 only VRMA mode is supported and LPCR[VPM0] no longer exists. We handle that difference in behaviour in ppc_hash64_set_isi().. but not in other places that we blindly check LPCR[VPM0]. Correct those instances with a new helper to tell if we should be in VRMA mode. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> |
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.. | ||
translate | ||
arch_dump.c | ||
compat.c | ||
cpu-models.c | ||
cpu-models.h | ||
cpu-param.h | ||
cpu-qom.h | ||
cpu.c | ||
cpu.h | ||
dfp_helper.c | ||
excp_helper.c | ||
fpu_helper.c | ||
gdbstub.c | ||
helper.h | ||
helper_regs.h | ||
int_helper.c | ||
internal.h | ||
kvm-stub.c | ||
kvm.c | ||
kvm_ppc.h | ||
machine.c | ||
Makefile.objs | ||
mem_helper.c | ||
mfrom_table.inc.c | ||
mfrom_table_gen.c | ||
misc_helper.c | ||
mmu-book3s-v3.c | ||
mmu-book3s-v3.h | ||
mmu-hash32.c | ||
mmu-hash32.h | ||
mmu-hash64.c | ||
mmu-hash64.h | ||
mmu-radix64.c | ||
mmu-radix64.h | ||
mmu_helper.c | ||
monitor.c | ||
timebase_helper.c | ||
trace-events | ||
translate.c | ||
translate_init.inc.c | ||
user_only_helper.c |