Displaying 5 results from an estimated 5 matches for "insn_get_immedi".
2020 May 12
2
[PATCH v3 23/75] x86/boot/compressed/64: Setup GHCB Based VC Exception handler
...E);
> +
> + insn_init(&ctxt->insn, buffer, MAX_INSN_SIZE, 1);
> + insn_get_length(&ctxt->insn);
> +
> + ret = ctxt->insn.immediate.got ? ES_OK : ES_DECODE_FAILED;
Why are we checking whether the immediate? insn_get_length() sets
insn->length unconditionally while insn_get_immediate() can error out
and not set ->got... ?
> +
> + return ret;
> +}
...
> +static bool sev_es_setup_ghcb(void)
> +{
> + if (!sev_es_negotiate_protocol())
> + sev_es_terminate(GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED);
> +
> + if (set_page_decrypted((unsigned long)&am...
2020 May 12
2
[PATCH v3 23/75] x86/boot/compressed/64: Setup GHCB Based VC Exception handler
...E);
> +
> + insn_init(&ctxt->insn, buffer, MAX_INSN_SIZE, 1);
> + insn_get_length(&ctxt->insn);
> +
> + ret = ctxt->insn.immediate.got ? ES_OK : ES_DECODE_FAILED;
Why are we checking whether the immediate? insn_get_length() sets
insn->length unconditionally while insn_get_immediate() can error out
and not set ->got... ?
> +
> + return ret;
> +}
...
> +static bool sev_es_setup_ghcb(void)
> +{
> + if (!sev_es_negotiate_protocol())
> + sev_es_terminate(GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED);
> +
> + if (set_page_decrypted((unsigned long)&am...
2020 May 12
0
[PATCH v3 23/75] x86/boot/compressed/64: Setup GHCB Based VC Exception handler
...mp;ctxt->insn, buffer, MAX_INSN_SIZE, 1);
> > + insn_get_length(&ctxt->insn);
> > +
> > + ret = ctxt->insn.immediate.got ? ES_OK : ES_DECODE_FAILED;
>
> Why are we checking whether the immediate? insn_get_length() sets
> insn->length unconditionally while insn_get_immediate() can error out
> and not set ->got... ?
Because the immediate is the last part of the instruction which is
decoded (even if there is no immediate). The .got field is set when
either the immediate was decoded successfully or, in case the
instruction has no immediate, when the rest of the...
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by