On Wed, Aug 10, 2022 at 08:20:29AM -0700, Peter Gonda wrote: > From: Sean Christopherson <seanjc@xxxxxxxxxx> > > Consolidate the actual copying of a ucall struct from guest=>host into > the common get_ucall(). Return a host virtual address instead of a guest > virtual address even though the addr_gva2hva() part could be moved to > get_ucall() too. Conceptually, get_ucall() is invoked from the host and > should return a host virtual address (and returning NULL for "nothing to > see here" is far superior to returning 0). > > Use pointer shenanigans instead of an unnecessary bounce buffer when the > caller of get_ucall() provides a valid pointer. > > Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> > Signed-off-by: Peter Gonda <pgonda@xxxxxxxxxx> > --- > .../selftests/kvm/include/ucall_common.h | 8 ++------ > .../testing/selftests/kvm/lib/aarch64/ucall.c | 14 +++----------- > tools/testing/selftests/kvm/lib/riscv/ucall.c | 19 +++---------------- > tools/testing/selftests/kvm/lib/s390x/ucall.c | 16 +++------------- > .../testing/selftests/kvm/lib/ucall_common.c | 19 +++++++++++++++++++ > .../testing/selftests/kvm/lib/x86_64/ucall.c | 16 +++------------- > 6 files changed, 33 insertions(+), 59 deletions(-) > Reviewed-by: Andrew Jones <andrew.jones@xxxxxxxxx>
