search for: op_count

...> + > + ret = vc_ioio_exitinfo(ctxt, &exit_info_1); > + if (ret != ES_OK) > + return ret; > + > + if (exit_info_1 & IOIO_TYPE_STR) { > + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1; > + unsigned int io_bytes, exit_bytes; > + unsigned int ghcb_count, op_count; > + unsigned long es_base; > + u64 sw_scratch; > + > + /* > + * For the string variants with rep prefix the amount of in/out > + * operations per #VC exception is limited so that the kernel > + * has a chance to take interrupts an re-schedule while the > + * inst...

...> + > + ret = vc_ioio_exitinfo(ctxt, &exit_info_1); > + if (ret != ES_OK) > + return ret; > + > + if (exit_info_1 & IOIO_TYPE_STR) { > + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1; > + unsigned int io_bytes, exit_bytes; > + unsigned int ghcb_count, op_count; > + unsigned long es_base; > + u64 sw_scratch; > + > + /* > + * For the string variants with rep prefix the amount of in/out > + * operations per #VC exception is limited so that the kernel > + * has a chance to take interrupts an re-schedule while the > + * inst...

...exit_info_1, exit_info_2; + enum es_result ret; + + ret = ioio_exitinfo(ctxt, &exit_info_1); + if (ret != ES_OK) + return ret; + + if (exit_info_1 & IOIO_TYPE_STR) { + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1; + unsigned int io_bytes, exit_bytes; + unsigned int ghcb_count, op_count; + u64 sw_scratch; + + /* + * For the string variants with rep prefix the amount of in/out + * operations per #VC exception is limited so that the kernel + * has a chance to take interrupts an re-schedule while the + * instruction is emulated. + */ + io_bytes = (exit_info_1 >>...

...t_info_1, exit_info_2; + enum es_result ret; + + ret = vc_ioio_exitinfo(ctxt, &exit_info_1); + if (ret != ES_OK) + return ret; + + if (exit_info_1 & IOIO_TYPE_STR) { + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1; + unsigned int io_bytes, exit_bytes; + unsigned int ghcb_count, op_count; + unsigned long es_base; + u64 sw_scratch; + + /* + * For the string variants with rep prefix the amount of in/out + * operations per #VC exception is limited so that the kernel + * has a chance to take interrupts an re-schedule while the + * instruction is emulated. + */ + io_bytes...

...of the requested mapping in bytes > +? ? ? ? */ > +? ? ? ?__u64 range; > +}; > + > +/** > + * struct drm_nouveau_vm_bind - structure for DRM_IOCTL_NOUVEAU_VM_BIND > + */ > +struct drm_nouveau_vm_bind { > +? ? ? ?/** > +? ? ? ? * @op_count: the number of &drm_nouveau_vm_bind_op > +? ? ? ? */ > +? ? ? ?__u32 op_count; > > > I've chatted a bit with Dave on IRC about this but both VM_BIND and EXEC > should support `op_count == 0` and do exactly the same thing that they > would do if there were re...

...the > > + * instruction is emulated. > > Doesn't this also suppress single-step #DBs? Yes it does. > > > + */ > > + io_bytes = (exit_info_1 >> 4) & 0x7; > > + ghcb_count = sizeof(ghcb->shared_buffer) / io_bytes; > > + > > + op_count = (exit_info_1 & IOIO_REP) ? regs->cx : 1; > > + exit_info_2 = min(op_count, ghcb_count); > > + exit_bytes = exit_info_2 * io_bytes; > > + > > + es_base = insn_get_seg_base(ctxt->regs, INAT_SEG_REG_ES); > > + > > + if (!(exit_info_1 & IOIO_T...

On Wed, Jun 03, 2020 at 04:23:25PM +0200, Joerg Roedel wrote: > > > + */ > > > + io_bytes = (exit_info_1 >> 4) & 0x7; > > > + ghcb_count = sizeof(ghcb->shared_buffer) / io_bytes; > > > + > > > + op_count = (exit_info_1 & IOIO_REP) ? regs->cx : 1; > > > + exit_info_2 = min(op_count, ghcb_count); > > > + exit_bytes = exit_info_2 * io_bytes; > > > + > > > + es_base = insn_get_seg_base(ctxt->regs, INAT_SEG_REG_ES); > > > + > > > +...

On Wed, Jun 03, 2020 at 04:23:25PM +0200, Joerg Roedel wrote: > > > + */ > > > + io_bytes = (exit_info_1 >> 4) & 0x7; > > > + ghcb_count = sizeof(ghcb->shared_buffer) / io_bytes; > > > + > > > + op_count = (exit_info_1 & IOIO_REP) ? regs->cx : 1; > > > + exit_info_2 = min(op_count, ghcb_count); > > > + exit_bytes = exit_info_2 * io_bytes; > > > + > > > + es_base = insn_get_seg_base(ctxt->regs, INAT_SEG_REG_ES); > > > + > > > +...

...seems to work. Joel %%Page: 2 2 <----This is the insert point in your postscript document. %!PS-Adobe-3.0 EPSF-3.0 %%BoundingBox: 4 4 608 407 %%Title: (YourTitle) %%CreationDate: (10/17/89) (5:04 PM) %%EndComments /b4_Inc_state save def% Save state for cleanup /dict_count countdictstack def /op_count count 1 sub def % Count objects on op stack userdict begin % Make userdict current dict /showpage { } def % Redefine showpage to be null /Courier findfont 12 scalefont setfont 60 60 moveto (This is my message) show <----This is the line to change for user/date/printer showpage %%EOF %%EndDocume...

...; + * @range: the size of the requested mapping in bytes >> + */ >> + __u64 range; >> +}; >> + >> +/** >> + * struct drm_nouveau_vm_bind - structure for DRM_IOCTL_NOUVEAU_VM_BIND >> + */ >> +struct drm_nouveau_vm_bind { >> + /** >> + * @op_count: the number of &drm_nouveau_vm_bind_op >> + */ >> + __u32 op_count; >> + /** >> + * @flags: the flags for a &drm_nouveau_vm_bind ioctl >> + */ >> + __u32 flags; >> +/** >> + * @DRM_NOUVEAU_VM_BIND_RUN_ASYNC: >> + * >> + * Indica...

Just an attempt to avoid overflows with an explicit check, I don't know if there's a better way to identify corrupt input here. James Zern (2): op_pcm_seek: fix int64 overflow op_fetch_and_process_page: fix int64 overflow src/opusfile.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) -- 2.15.0.448.gf294e3d99a-goog

...> +???? */ >>> +??? __u64 range; >>> +}; >>> + >>> +/** >>> + * struct drm_nouveau_vm_bind - structure for >>> DRM_IOCTL_NOUVEAU_VM_BIND >>> + */ >>> +struct drm_nouveau_vm_bind { >>> +??? /** >>> +???? * @op_count: the number of &drm_nouveau_vm_bind_op >>> +???? */ >>> +??? __u32 op_count; >>> +??? /** >>> +???? * @flags: the flags for a &drm_nouveau_vm_bind ioctl >>> +???? */ >>> +??? __u32 flags; >>> +/** >>> + * @DRM_NOUVEAU_V...

On Tue, Nov 28, 2017 at 3:22 PM, James Zern <jzern at google.com> wrote: > On Mon, Nov 20, 2017 at 1:07 PM, James Zern <jzern at google.com> wrote: >> Just an attempt to avoid overflows with an explicit check, I don't know if >> there's a better way to identify corrupt input here. >> >> James Zern (2): >> op_pcm_seek: fix int64 overflow

...>>>> + __u64 range; >>>> +}; >>>> + >>>> +/** >>>> + * struct drm_nouveau_vm_bind - structure for DRM_IOCTL_NOUVEAU_VM_BIND >>>> + */ >>>> +struct drm_nouveau_vm_bind { >>>> + /** >>>> + * @op_count: the number of &drm_nouveau_vm_bind_op >>>> + */ >>>> + __u32 op_count; >>>> + /** >>>> + * @flags: the flags for a &drm_nouveau_vm_bind ioctl >>>> + */ >>>> + __u32 flags; >>>> +/** >>>> + *...

Hello, I have implemented a pass to count total number of instructions in LLVM 8.0. Its source code is attached here. The pass runs fine with LLVM 4.0. But with LLVM 8.0 following error is shown; $ $LLVMopt_BIN/opt -load $LLVM_SO/LLVMStatic-Info.so -one output-simple.bc WARNING: You're attempting to print out a bitcode file. This is inadvisable as it may cause display problems. If you REALLY

...pusfile.c b/src/opusfile.c index df326af..2bef277 100644 --- a/src/opusfile.c +++ b/src/opusfile.c @@ -2078,7 +2078,10 @@ static int op_fetch_and_process_page(OggOpusFile *_of, &&OP_LIKELY(diff<total_duration)){ cur_packet_gp=prev_packet_gp; for(pi=0;pi<op_count;pi++){ - diff=durations[pi]-diff; + /*Check for overflow.*/ + if(diff<0&&OP_UNLIKELY(OP_INT64_MAX+diff<durations[pi])){ + diff=0; + } else diff=durations[pi]-diff; /*If we have samples to trim...*/ if(d...

.../ __u32 flags; -/** - * @DRM_NOUVEAU_VM_BIND_SPARSE: - * - * Indicates that an allocated VA space region should be sparse. - */ #define DRM_NOUVEAU_VM_BIND_SPARSE (1 << 8) /** * @handle: the handle of the DRM GEM object to map @@ -301,17 +299,17 @@ struct drm_nouveau_vm_bind { __u32 op_count; /** * @flags: the flags for a &drm_nouveau_vm_bind ioctl + * + * Supported values: + * + * %DRM_NOUVEAU_VM_BIND_RUN_ASYNC - Indicates that the given VM_BIND + * operation should be executed asynchronously by the kernel. + * + * If this flag is not supplied the kernel executes the a...

...- > pcm_start). > This works. > [...] > >> @@ -2078,7 +2078,10 @@ static int op_fetch_and_process_page(OggOpusFile >> *_of, >> &&OP_LIKELY(diff<total_duration)){ >> cur_packet_gp=prev_packet_gp; >> for(pi=0;pi<op_count;pi++){ >> - diff=durations[pi]-diff; >> + /*Check for overflow.*/ >> + if(diff<0&&OP_UNLIKELY(OP_INT64_MAX+diff<durations[pi])){ >> + diff=0; >> + } else diff=durations[pi]-diff; >>...

...we'll report an error in most cases instead of pretending we succeeded. > @@ -2078,7 +2078,10 @@ static int op_fetch_and_process_page(OggOpusFile *_of, > &&OP_LIKELY(diff<total_duration)){ > cur_packet_gp=prev_packet_gp; > for(pi=0;pi<op_count;pi++){ > - diff=durations[pi]-diff; > + /*Check for overflow.*/ > + if(diff<0&&OP_UNLIKELY(OP_INT64_MAX+diff<durations[pi])){ > + diff=0; > + } else diff=durations[pi]-diff; > /*If we have samples...

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