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279 commits

Author SHA1 Message Date
Hector Martin
f8110dd409 hv_exc: Handle M1RACLES mitigation here due to 12.0 spam 
macOS 12.0 added a silly ineffective "mitigation" that clears the
register on every context switch. This doesn't actually mitigate
anything, but it does make this sysreg trap performance-critical,
so we have to move its handling into the C side.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-08-14 16:30:18 +09:00
Hector Martin
a18033e569 main: Add a searchable tag to find the m1n1 version 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-08-12 16:13:33 +09:00
Alyssa Rosenzweig
a52330809b startup: Prettyify video depth dump 
Use the right unit. for rgb10x2, this prints "30bpp" instead of "0x1E".

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2021-08-03 13:48:28 +09:00
Sven Peter
856a9dbd1b usb: don't initialize more than once 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-07-10 16:29:05 +09:00
Sven Peter
5d2315a865 uartproxy: flush iodev before shutting down 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-07-10 16:29:05 +09:00
Sven Peter
e0d889fac1 hv: add proper single stepping support 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-07-09 15:52:40 +09:00
Sven Peter
6afe9ebaf9 kboot: move SEPFW to initrd before booting 
Bootstrapping SEPOS requires to setup a scratch buffer and
will have to be handled by the final OS. We pass along
the firmware image by appending it to the initramfs.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-07-09 15:40:11 +09:00
Sven Peter
cd4b563a31 cpio: add functions to create cpio images 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-07-09 15:40:11 +09:00
Hector Martin
95aeb7bb83 hv: Use hv_write_hcr() for initial configuration 
This might make things work if GXF is already enabled, maybe.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-22 01:15:00 +09:00
Janne Grunau
98076ef693 usb: disable tps6598x interrupts 
Restore the interrupt masks on chainload or HV guest start. The
interrupt mask is not restored on the USB-C port used by the hypervisor.
This prevents an interrupt storm in the guest when the other USB-C port
is exposed to the guest. Both tps6598x share unfortunately an interrupt
line.

Signed-off-by: Janne Grunau <j@jannau.net>
 2021-06-18 14:26:54 +09:00
Hector Martin
7e5054548a hv_vm: Rename SPTE_SYNC_TRACE to SPTE_TRACE_UNBUF 
It's not really synchronous, it just flushes USB buffering.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-15 16:10:06 +09:00
Hector Martin
a664bd5d55 hv_vm: Minor fixes to pagetable code 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-15 15:47:44 +09:00
Hector Martin
7ff613665b hv_asm.S: Add comments to the vectors 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-15 15:47:24 +09:00
Hector Martin
5751fa0019 hv_vm: Remove broken hv_max_proxy_hook 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-15 15:47:07 +09:00
Mark Kettenis
d33d7ba89d kboot: Provide MAC addresses in device tree 
Read the MAC addresses from the ADT and store them in
"local-mac-address" properties on the relevant nodes in the FDT.
This relies on appropriate aliases in the provided FDT, which
matches how U-Boot provides MAC addresses on embedded targets.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
 2021-06-15 15:27:18 +09:00
Sven Peter
9e061c2b50 usb_dwc3: shutdown the DART as well when shutting down usb 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-06-10 15:41:33 +09:00
Janne Grunau
88275b5cb5 hv: add AIC interrupt tracing 
Implemented by MMIO tracing of AIC's event register. Proposed by pipcet.

Signed-off-by: Janne Grunau <j@jannau.net>
 2021-06-10 15:41:02 +09:00
Sven Peter
3e807d6686 dart: shutdown to bypass mode 
This allows payloads to use DMA for anything that's not PCIe
even without a DART driver. It also restores the DART registers
the state the were left by iBoot.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-06-10 00:00:37 +09:00
Janne Grunau
4b5c016368 hv: disable PMU counters inside the hypervisor 
Signed-off-by: Janne Grunau <j@jannau.net>
 2021-06-09 19:47:20 +09:00
Janne Grunau
d61bf13cb0 hv: shadow perf monitor IRQ mode and state 
The development Mac OS kernel panics if the PMCR0 sysreg is in an
unexpected state. To avoid that the hypervisor needs to shadow the
interrupt mode and interrupt active flag after it mask the PM FIQ.
Mac OS reads and writes frequently from PMCR0 and PMC 0/1 so handling
in m1n1 is preferred over Python.

Signed-off-by: Janne Grunau <j@jannau.net>
 2021-06-09 19:47:20 +09:00
Sven Peter
9529ec2b4f usb: add hpm_init and split usb_init and usb_iodev_init 
This allows to bringup the USB PHY and the HPM for the
payload without having to initialize the CDC ACM driver
at the same time.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-06-09 19:45:38 +09:00
Sven Peter
d2b619957c tps6598x: add support for the USB PD chip 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-06-09 19:45:38 +09:00
Sven Peter
103100bb42 i2c: add i2c support 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-06-09 19:45:38 +09:00
Hector Martin
a175b6d159 proxy: Add reboot() call to hard reboot the system 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-06-04 15:09:11 +09:00
Hector Martin
393089f076 hv_exc: Also pass through (E)HID4, since it's noisy 
This seems to be poked every time the kernel does a specific kind of
dcache flush...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-30 03:37:12 +09:00
Hector Martin
f1cfe27e31 hv: Use AFSR_GL1 when in guarded mode. 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-30 03:34:17 +09:00
Hector Martin
cd5a00ec87 uartproxy: Use only appropriate iodevs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-30 02:11:10 +09:00
Hector Martin
c794ea6dc2 hv_vuart: Make compatible with xnu and enable 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-30 01:39:26 +09:00
Hector Martin
ccc2d0b450 usb_dwc3: Implement CLEAR FEATURE, tweak things 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 17:52:48 +09:00
Hector Martin
4195b09c41 hv_wdt: Remove dead include 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 04:30:13 +09:00
Hector Martin
775902112d hv.py: Add M1RACLES mitigation 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 02:41:17 +09:00
Hector Martin
fe651cb9d7 hv_vm: Add more load/store emulation 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 02:13:23 +09:00
Hector Martin
12a7a0f1bb hv_exc: Allow the guest to see a bit of stolen time 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 02:13:23 +09:00
Hector Martin
fe2e89573e hv: Move break handling to hv_tick(), properly poll 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 02:13:23 +09:00
Hector Martin
66fc157e94 fb: Improve visuals 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:45:05 +09:00
Hector Martin
db0252a1d6 hv_exc: Steal time from the guest during HV exceptions 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:38:42 +09:00
Hector Martin
dd443d2c2c cpu_regs: Fix missing IMP_APL prefixes 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:38:11 +09:00
Hector Martin
0265edebba hv_exc: Add ACTLR_EL1 sysreg forwarding 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:37:48 +09:00
Hector Martin
a21e46031e kboot: Only initialize PCIe when booting a kernel payload 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:04:52 +09:00
Hector Martin
bd8ae6f4f6 pcie: Add a pcie_shutdown() function and call it on hv init 
Guests don't like it if PCIe is initialized already

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-28 00:03:11 +09:00
Hector Martin
77a36a7d34 utils,proxy: Add basic SIMD register fetch and mutation support 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 22:57:25 +09:00
Hector Martin
ae55e1c5dc hv_vm: Add debug breadcrumbs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 22:05:23 +09:00
Hector Martin
f792b128c5 hv_vm: Suspend watchdog around mmiotrace event writes 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 22:05:23 +09:00
Vincent Duvert
3d1747466b Add an option to disable checksumming if possible 
* Introduce feature flags which allows the proxy and m1n1 to determine which
features they have in common.
* Add a feature flag that disables checksumming (by replacing checksums with
constant values) for the data packets exchanged by REQ_MEMREAD, REQ_MEMWRITE
and REQ_EVENT. The feature is enabled if m1n1 supports it; checksumming is kept
enabled for UART communication.
* To ensure no packet loss when checksumming is disabled, an extra sentinel
value is added after the exchanged data for memory read/write operations.

Signed-off-by: Vincent Duvert <vincent@duvert.net>
 2021-05-27 21:34:37 +09:00
Hector Martin
85411d1714 hv_vm: Add support for 128-bit ops, stp/ldp, fix some emu bugs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:29:58 +09:00
Hector Martin
bfe8c94c47 hv_wdt: Add hypervisor watchdog on secondary core 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:28:43 +09:00
Hector Martin
c93f856c92 exception: Only enable IRQs on the primary core 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:28:43 +09:00
Hector Martin
0a91cc2b08 gxf: Make gl_call work with GXF or SPRR locked 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:28:43 +09:00
Hector Martin
a5a974791b hv: Support handling GL2 exceptions 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:28:43 +09:00
Hector Martin
b1e09ad509 exception,gxf: Turn off PAN on exception entry 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-27 21:11:14 +09:00