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| author | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-02-28 20:42:42 -0800 |
|---|---|---|
| committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-02-28 20:42:42 -0800 |
| commit | d2d2e0a55c08b15a08892d5b89ee939a5986e69e (patch) | |
| tree | 610c4abb4f618b7d6946dd48d8e0d5ad0d752a43 /pk/frontend.c | |
| parent | 75471727f834ba6e227804a2b7330658a65f700a (diff) | |
| download | riscv-pk-d2d2e0a55c08b15a08892d5b89ee939a5986e69e.zip riscv-pk-d2d2e0a55c08b15a08892d5b89ee939a5986e69e.tar.gz riscv-pk-d2d2e0a55c08b15a08892d5b89ee939a5986e69e.tar.bz2 | |
Remove SBI HTIF support; add console_getchar
Diffstat (limited to 'pk/frontend.c')
| -rw-r--r-- | pk/frontend.c | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/pk/frontend.c b/pk/frontend.c index b2d26ce..5055a28 100644 --- a/pk/frontend.c +++ b/pk/frontend.c @@ -8,20 +8,6 @@ #include "syscall.h" #include <stdint.h> -uint64_t tohost_sync(unsigned dev, unsigned cmd, uint64_t payload) -{ - uint64_t fromhost; - __sync_synchronize(); - - sbi_device_message m = {dev, cmd, payload}, *p; - do_mcall(MCALL_SEND_DEVICE_REQUEST, &m); - while ((p = (void*)do_mcall(MCALL_RECEIVE_DEVICE_RESPONSE)) == 0); - kassert(p == &m); - - __sync_synchronize(); - return m.data; -} - long frontend_syscall(long n, long a0, long a1, long a2, long a3, long a4, long a5, long a6) { static volatile uint64_t magic_mem[8]; @@ -38,7 +24,7 @@ long frontend_syscall(long n, long a0, long a1, long a2, long a3, long a4, long magic_mem[6] = a5; magic_mem[7] = a6; - tohost_sync(0, 0, (uintptr_t)magic_mem); + do_mcall(MCALL_HTIF_SYSCALL, magic_mem); long ret = magic_mem[0]; |