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uti: rename x86-specific 'fs' to 'tls' + arm implem

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Note: the original fujitsu implementation didn't rename the various
save_fs function/desc to save_tls for some reason, might as well go all
the way though...

Change-Id: Ic362c15c8b320c4d258d2ead8c5fd4eafd9d0ae9
Fujitsu: POSTK_DEBUG_ARCH_DEP_91
This commit is contained in:
Shiratori, Takehiro
2019-03-12 14:35:27 +09:00
committed by Masamichi Takagi
parent 8356ef6c96
commit c32edff2bb
8 changed files with 79 additions and 46 deletions
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30
executer/kernel/mcctrl/arch/x86_64/archdeps.c
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@@ -261,25 +261,35 @@ struct trans_uctx {
};
void
restore_fs(unsigned long fs)
restore_tls(unsigned long addr)
{
wrmsrl(MSR_FS_BASE, fs);
wrmsrl(MSR_FS_BASE, addr);
}
void
save_fs_ctx(void *ctx)
save_tls_ctx(void __user *ctx)
{
struct trans_uctx *tctx = ctx;
struct trans_uctx __user *tctx = ctx;
struct trans_uctx kctx;
rdmsrl(MSR_FS_BASE, tctx->fs);
if (copy_from_user(&kctx, tctx, sizeof(struct trans_uctx))) {
pr_err("%s: copy_from_user failed.\n", __func__);
return;
}
rdmsrl(MSR_FS_BASE, kctx.fs);
}
unsigned long
get_fs_ctx(void *ctx)
get_tls_ctx(void __user *ctx)
{
struct trans_uctx *tctx = ctx;
struct trans_uctx __user *tctx = ctx;
struct trans_uctx kctx;
return tctx->fs;
if (copy_from_user(&kctx, tctx, sizeof(struct trans_uctx))) {
pr_err("%s: copy_from_user failed.\n", __func__);
return 0;
}
return kctx.fs;
}
unsigned long
@@ -370,9 +380,9 @@ static inline bool pte_is_write_combined(pte_t pte)
/*
* The assembler switch_ctx is save/load registers in the context.
* Do FS save/load and register host_thread with ioctl.
* Do TLS save/load and register host_thread with ioctl.
*/
long arch_switch_ctx(struct uti_save_fs_desc *desc)
long arch_switch_ctx(struct uti_switch_ctx_desc *desc)
{
return 0;
}