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40ebdb8e59
We currently do not notify all gmaps when using gmap_pmdp_xchg(), due
to locking constraints. This makes ucontrol VMs, which is the only VM
type that creates multiple gmaps, incompatible with huge pages. Also
we would need to hold the guest_table_lock of all gmaps that have this
vmaddr maped to synchronize access to the pmd.
ucontrol VMs are rather exotic and creating a new locking concept is
no easy task. Hence we return EINVAL when trying to active
KVM_CAP_S390_HPAGE_1M and report it as being not available when
checking for it.
Fixes:
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.. | ||
diag.c | ||
gaccess.c | ||
gaccess.h | ||
guestdbg.c | ||
intercept.c | ||
interrupt.c | ||
irq.h | ||
Kconfig | ||
kvm-s390.c | ||
kvm-s390.h | ||
Makefile | ||
priv.c | ||
sigp.c | ||
trace-s390.h | ||
trace.h | ||
vsie.c |