kern: add infra (but not impl) for all DeviceAddressSpace svcs

2020-07-14 18:46:25 -07:00
parent 863515a3b5
commit 0d3aa13f70
11 changed files with 303 additions and 13 deletions
--- a/libraries/libmesosphere/source/svc/kern_svc_register.cpp
+++ b/libraries/libmesosphere/source/svc/kern_svc_register.cpp
@@ -22,6 +22,10 @@ namespace ams::kern::svc {
    namespace {

        Result ReadWriteRegister(uint32_t *out, ams::svc::PhysicalAddress address, uint32_t mask, uint32_t value) {
+            /* Clear the output unconditionally. */
+            *out = 0;
+
+            /* Read/write the register. */
            return KSystemControl::ReadWriteRegister(out, address, mask, value);
        }