diff options
| author | Jose Martins <josemartins90@gmail.com> | 2021-10-26 15:51:26 +0100 |
|---|---|---|
| committer | Alistair Francis <alistair@alistair23.me> | 2021-10-29 16:54:45 +1000 |
| commit | 50d160876414e91e51ac718ac6edea6dbadf4694 (patch) | |
| tree | 1530ca6d918f2d8fb1fc5e089685e29f0440141c /target/riscv/cpu_bits.h | |
| parent | 487a99551ae903fc83a878d4cbc6d853e17ad252 (diff) | |
target/riscv: remove force HS exception
There is no need to "force an hs exception" as the current privilege
level, the state of the global ie and of the delegation registers should
be enough to route the interrupt to the appropriate privilege level in
riscv_cpu_do_interrupt. The is true for both asynchronous and
synchronous exceptions, specifically, guest page faults which must be
hardwired to zero hedeleg. As such the hs_force_except mechanism can be
removed.
Signed-off-by: Jose Martins <josemartins90@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20211026145126.11025-3-josemartins90@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/cpu_bits.h')
| -rw-r--r-- | target/riscv/cpu_bits.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index aa0bce4e06..9913fa9f77 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -444,12 +444,6 @@ typedef enum { /* Virtulisation Register Fields */ #define VIRT_ONOFF 1 -/* This is used to save state for when we take an exception. If this is set - * that means that we want to force a HS level exception (no matter what the - * delegation is set to). This will occur for things such as a second level - * page table fault. - */ -#define FORCE_HS_EXCEP 2 /* RV32 satp CSR field masks */ #define SATP32_MODE 0x80000000 |