On Tue, Sep 14, 2021 at 08:53:48AM +0200, Philippe Mathieu-Daudé wrote: > On 7/19/21 1:21 PM, Yang Zhong wrote: > > If the VM is reset, we need make sure sgx virt epc in clean status. > > Once the VM is reset, and sgx epc virt device will be reseted by > > reset callback registered by qemu_register_reset(). Since this epc > > virt device depend on backend, this reset will call backend reset > > interface to re-mmap epc to guest. > > > > Signed-off-by: Yang Zhong <yang.zh...@intel.com> > > --- > > hw/i386/sgx-epc.c | 94 ++++++++++++++++++++++++++++++++++++++++------- > > 1 file changed, 81 insertions(+), 13 deletions(-) > > > > diff --git a/hw/i386/sgx-epc.c b/hw/i386/sgx-epc.c > > index 924dea22f0..9880d832d5 100644 > > --- a/hw/i386/sgx-epc.c > > +++ b/hw/i386/sgx-epc.c > > @@ -18,6 +18,9 @@ > > #include "qapi/visitor.h" > > #include "target/i386/cpu.h" > > #include "exec/address-spaces.h" > > +#include "sysemu/reset.h" > > + > > +uint32_t epc_num; > > Missing 'static' qualifier.
Philippe, thanks! This Qemu SGX reset solution will be replaced by kernel patchset made by Paolo(https://www.spinics.net/lists/kvm/msg253930.html). Yang
