riscv/qemu: QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org - qemu

QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

emulation kvm qemu virtualization

History

Benjamin Herrenschmidt c73e3771ea spapr: Add "memop" hypercall This adds a qemu-specific hypervisor call to the pseries machine which allows to do what amounts to memmove, memcpy and xor over regions of physical memory such as the framebuffer. This is the simplest way to get usable framebuffer speed from SLOF since the framebuffer isn't mapped in the VRMA and so would otherwise require an hcall per 8 bytes access. The performance is still not great but usable, and can be improved with a more complex implementation of the hcall itself if needed. This also adds some documentation for the qemu-specific hypercalls that we add to PAPR along with a new qemu,hypertas-functions property that mirrors ibm,hypertas-functions and provides some discoverability for the new calls. Note: I chose note to advertise H_RTAS to the guest via that mechanism. This is done on purpose, the guest uses the normal RTAS interfaces provided by qemu (including SLOF) which internally calls H_RTAS. We might in the future implement part (or even all) of RTAS inside the guest like IBM's firmware does and replace H_RTAS with some finer grained set of private hypercalls. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Alexander Graf <agraf@suse.de>		14 years ago
..
specs	spapr: Add "memop" hypercall	14 years ago
blkverify.txt	blkverify: Add block driver for verifying I/O	16 years ago
bootindex.txt	Add boot index documentation.	16 years ago
ccid.txt	Replace Qemu by QEMU in internal documentation	15 years ago
ich9-ehci-uhci.cfg	usb: update documentation	15 years ago
libcacard.txt	libcacard: Spelling and grammar fixes in documentation	15 years ago
live-block-ops.txt	docs: describe live block operations	15 years ago
memory.txt	memory: minor documentation fixes/enhancements	15 years ago
migration.txt	docs: document memory API interaction with migration	15 years ago
qapi-code-gen.txt	qapi: untangle next_list	15 years ago
qdev-device-use.txt	docs: Fix qdev-device-use.txt typo in -chardev serial, path=COM<NUM>	15 years ago
tracing.txt	docs: correct ./configure line in tracing.txt	15 years ago
usb2.txt	xhci: add usage info to docs	14 years ago
writing-qmp-commands.txt	Spelling fixes in comments and documentation	15 years ago
xen-save-devices-state.txt	Introduce "xen-save-devices-state"	15 years ago