diff options
| author | Soby Mathew <soby.mathew@arm.com> | 2018-11-16 15:43:34 +0000 |
|---|---|---|
| committer | Soby Mathew <soby.mathew@arm.com> | 2018-12-05 10:40:08 +0000 |
| commit | 01fc1c24b9a03c519efae4d006a71c350c0529fa (patch) | |
| tree | c6bf51fa11d0b4e8c59dd2c968f88b329d4b12b4 /bl31 | |
| parent | 6d422c3e2b80cf4de96b5ad824e84382be5fa52f (diff) | |
BL31: Use helper function to save registers in SMC handler
Use the helper function `save_gp_registers` to save the register
state to cpu_context on entry to EL3 in SMC handler. This has the
effect of saving x0 - x3 as well into the cpu_context which was
not done previously but it unifies the register save sequence
in BL31.
Change-Id: I5753c942263a5f9178deda3dba896e3220f3dd83
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Diffstat (limited to 'bl31')
| -rw-r--r-- | bl31/aarch64/runtime_exceptions.S | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/bl31/aarch64/runtime_exceptions.S b/bl31/aarch64/runtime_exceptions.S index 54db6814..77bd63ec 100644 --- a/bl31/aarch64/runtime_exceptions.S +++ b/bl31/aarch64/runtime_exceptions.S @@ -356,24 +356,8 @@ smc_handler64: * We already have x0-x4 in place. x5 will point to a cookie (not used * now). x6 will point to the context structure (SP_EL3) and x7 will * contain flags we need to pass to the handler. - * - * Save x4-x29 and sp_el0. */ - stp x4, x5, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X4] - stp x6, x7, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X6] - stp x8, x9, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X8] - stp x10, x11, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X10] - stp x12, x13, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X12] - stp x14, x15, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X14] - stp x16, x17, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X16] - stp x18, x19, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X18] - stp x20, x21, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X20] - stp x22, x23, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X22] - stp x24, x25, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X24] - stp x26, x27, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X26] - stp x28, x29, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X28] - mrs x18, sp_el0 - str x18, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_SP_EL0] + bl save_gp_registers mov x5, xzr mov x6, sp |