openslx-ng/ipxe.git/src/arch/x86/include/ipxe, branch master

[rng] Use fixed-point calculations for min-entropy quantities

2018-03-20T18:56:01+00:00

We currently perform various min-entropy calculations using build-time floating-point arithmetic. No floating-point code ends up in the final binary, since the results are eventually converted to integers and asserted to be compile-time constants. Though this mechanism is undoubtedly cute, it inhibits us from using "-mno-sse" to prevent the use of SSE registers by the compiler. Fix by using fixed-point arithmetic instead. Signed-off-by: Michael Brown

[cpuid] Allow input %ecx value to be specified

2017-06-16T00:17:48+00:00

For some CPUID leaves (e.g. %eax=0x00000004), the result depends on the input value of %ecx. Allow this subfunction number to be specified as a parameter to the cpuid() wrapper. The subfunction number is exposed via the ${cpuid/...} settings mechanism using the syntax ${cpuid/.0x40..} e.g. ${cpuid/0.0x40.0.0x0000000b} ${cpuid/1.0x40.0.0x0000000b} to retrieve the CPU topology information. Signed-off-by: Michael Brown

[acpi] Make acpi_find_rsdt() a per-platform method

2017-05-23T17:34:39+00:00

Signed-off-by: Michael Brown

[time] Allow timer to be selected at runtime

2017-01-26T08:17:37+00:00

Allow the active timer (providing udelay() and currticks()) to be selected at runtime based on probing during the INIT_EARLY stage of initialisation. TICKS_PER_SEC is now a fixed compile-time constant for all builds, and is independent of the underlying clock tick rate. We choose the value 1024 to allow multiplications and divisions on seconds to be converted to bit shifts. TICKS_PER_MS is defined as 1, allowing multiplications and divisions on milliseconds to be omitted entirely. The 2% inaccuracy in this definition is negligible when using the standard BIOS timer (running at around 18.2Hz). TIMER_RDTSC now checks for a constant TSC before claiming to be a usable timer. (This timer can be tested in KVM via the command-line option "-cpu host,+invtsc".) Signed-off-by: Michael Brown

[cpuid] Provide cpuid_supported() to test for supported functions

2017-01-25T20:57:18+00:00

Signed-off-by: Michael Brown

[acpi] Add support for ACPI power off

2016-07-11T13:05:18+00:00

Signed-off-by: Michael Brown

[int13] Allow default drive to be specified via "san-drive" setting

2016-03-22T09:55:09+00:00

The DHCP option 175.189 has been defined (by us) since 2006 as containing the drive number to be used for a SAN boot, but has never been automatically used as such by iPXE. Use this option (if specified) to override the default SAN drive number. Signed-off-by: Michael Brown

[librm] Support ioremap() for addresses above 4GB in a 64-bit build

2016-02-26T15:34:28+00:00

Signed-off-by: Michael Brown

[ioapi] Split ioremap() out to a separate IOMAP API

2016-02-26T15:33:40+00:00

Signed-off-by: Michael Brown

[bios] Add bin-x86_64-pcbios build platform

2016-02-16T19:32:32+00:00

Move most arch/i386 files to arch/x86, and adjust the contents of the Makefiles and the include/bits/*.h headers to reflect the new locations. This patch makes no substantive code changes, as can be seen using a rename-aware diff (e.g. "git show -M5"). This patch does not make the pcbios platform functional for x86_64; it merely allows it to compile without errors. Signed-off-by: Michael Brown