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

[time] Add support for the ACPI power management timer

2018-03-20T15:26:49+00:00

Allow the ACPI power management timer to be used if enabled via TIMER_ACPI in config/timer.h. This provides an alternative timer on systems where the standard 8254 PIT is unavailable or unreliable. 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

[rng] Check for functioning RTC interrupt

2016-07-10T19:42:53+00:00

On some platforms (observed in a small subset of Microsoft Azure (Hyper-V) virtual machines), the RTC appears to be incapable of generating an interrupt via the legacy PIC. The RTC status registers show that a periodic interrupt has been asserted, but the PIC IRR shows that IRQ8 remains inactive. On such systems, iPXE will currently freeze during the "iPXE initialising devices..." message. Work around this problem by checking that RTC interrupts are being raised before returning from rtc_entropy_enable(). If no interrupt is seen within 100ms, then we assume that the RTC interrupt mechanism is broken. In these circumstances, iPXE will continue to initialise but any subsequent attempt to generate entropy will fail. In particular, HTTPS connections will fail with an error indicating that no entropy is available. Signed-off-by: Michael Brown

[efi] Generalise EFI entropy generation to non-x86 CPUs

2016-05-04T13:34:24+00:00

Signed-off-by: Michael Brown

[tcpip] Do not fall back to using unoptimised TCP/IP checksumming

2016-05-04T12:38:25+00:00

Require architecture-specific code to make a deliberate choice to use the unoptimised generic_tcpip_continue_chksum() function, if there is no optimised version available. Signed-off-by: Michael Brown

[gdb] Add support for x86_64

2016-03-22T08:44:32+00:00

Signed-off-by: Michael Brown

[xen] Use generic test_and_clear_bit() function

2016-03-16T22:46:05+00:00

Signed-off-by: Michael Brown