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Current IO emulation is synchronous. The user VM need to wait for the completion of the the I/O request before return. But Virtio Spec introduces introduces asynchronous IO with a new register in MMIO/PIO space named NOTIFY, to be used for FE driver to notify BE driver, ACRN hypervisor can emulate this register by sending a notification to vCPU in Service VM side. This way, FE side can resume to work without waiting for the full completion of BE side response. Tracked-On: #8209 Signed-off-by: Conghui <conghui.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com> |
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.. | ||
console.c | ||
dbg_cmd.c | ||
dump.c | ||
hypercall.c | ||
logmsg.c | ||
Makefile | ||
npk_log.c | ||
printf.c | ||
profiling.c | ||
sbuf.c | ||
shell_priv.h | ||
shell.c | ||
string.c | ||
trace.c | ||
uart16550.c |